In the blue shoe box on the card table they would find my priceless files. I had written all my data about today's suspect, drawn his face several times from several angles, and filed it all under his car's license number. When the police needed it, it was ready.

Privately I thought the reference librarian at the Homewood Library was soft in the head. The week before, she had handed me, in broad daylight, the book that contained the key to Morse code. Without a word, she watched me copy it, pocket the paper, and leave.

I knew how to keep a code secret, if she didn't. At home I memorized Morse code promptly, and burned the paper.

I had read the library's collection of popular forensic medicine, its many books about Scotland Yard and the FBI, a dull biography of J. Edgar Hoover, and its Sherlock Holmes. I knew I was not alone in knowing Morse code. The FBI knew it, Scotland Yard knew it, and every sparks in the navy knew it. I read everything I could get about ham radios. All I needed was a receiver. I could listen in on troop maneuvers, intelligence reports, and disasters at sea. And I could rescue other hams from calamity, to which, as a cla.s.s, they seemed remarkably p.r.o.ne.

I knew that police artists made composite drawings of criminal suspects. Witnesses to crimes selected, from a varied a.s.sortment, a stripe of crown hair, a stripe or two of forehead, a stripe of eyes, and so forth. Police artists-of whose ranks I was an oblate-made a drawing that combined these elements; newspapers published the drawings; someone recognized the suspect and called the police.

When Pin Ford and I were running low on suspects, and had run out of things to communicate in Morse code, I sat at my attic table beside the shoe box file and drew a variety of such stripes. I amused myself by combining them into new faces. So G.o.d must sit in heaven, at a card table, fingering a heap of stripes-hairlines, jawlines, brows-and joining them at whim to people a world. I began wondering if the stock of individual faces on earth through all of time is infinite.

My sweetest ambition was to see a drawing of mine on a newspaper's front page: HAS ANYBODY SEEN THIS MAN HAS ANYBODY SEEN THIS MAN? I didn't care about reducing crime, any more than Sherlock Holmes did. I rather wished there were more crime, and closer by. What interested me was the schematic likeness, how recognizable it was, and how startlingly few things you needed to strike a resemblance. You needed only a few major proportions in the head. The soft tissues scarcely mattered; they were merely decorations that children drew. What mattered was the framing of the skull.

And so in that faraway attic, among the boughs of buckeye trees, year after year, I drew. I drew formal, sustained studies of my left hand still on the card table, of my baseball mitt, a saddle shoe. I drew from memory the faces of the people I knew, my own family just downstairs in the great house-oh, but I hated these clumsy drawings, these beloved faces so rigid on the page and lacking in tenderness and irony. (Who could a.n.a.lyze a numb skull when all you cared about was a lively caught glance, the pleased rising of Mother's cheek, the soft amused setting of Amy's lip, Father's imagining eye in its socket?) And I drew from memory the faces of people I saw in the streets. I formed sentences about them as I looked at them, and repeated the sentences to myself as I wandered on.

I wanted to notice everything, as Holmes had, and remember it all, as no one had before. Noticing and remembering were the route to Scotland Yard, where I intended to find my niche. They were also, more urgently, the route to the corner yard on Edgerton Avenue, to life in the house we had left and lost.

Hadn't I already forgotten the floor plan of that house where I had lived for seven years? I could see a terrifying oblong of light bend across a room's corner; I could see my mother talking on the phone in the dark stairwell, and Jo Ann Sheehy skating at night on the iced street, and the broom-closet door opening to reveal-the broom. But who could st.i.tch these ripped remnants together? I could no longer conjure up the face of Walter Milligan, the red-haired Irish boy I had chased up and down a football field-could no longer remember his face because I had neglected to memorize it.

Noticing and remembering everything would trap bright scenes to light and fill the blank and darkening past which was already piling up behind me. The growing size of that blank and ever-darkening past frightened me; it loomed beside me like a hole in the air and battened on sc.r.a.ps of my life I failed to claim. If one day I forgot to notice my life, and be d.a.m.ned grateful for it, the blank cave would suck me up entire.

From now on, I would beat the days into my brain. Every year, every month, I vowed this vow in a different form.

But the new scenes I tried to memorize with the aid of sentences were as elusive and random as the scenes I remembered without effort. They were just as broken, trivial, capsizing, submerged. Instead of a suspect's face I saw red-lighted rain in front of a car's taillight. Instead of the schoolyard recess scene I loved, the dodgeball game I tried to memorize at one moment, and then at another-my friends and I excited and whooping-I saw a coa.r.s.e cement corner, and the cyclone fence above it, and only a flash of dark green school uniforms below. Instead of my sister Molly just starting to walk I saw the smocking on her blue dress, and her stained palm. These were torn and out-of-focus scenes playing on windblown sc.r.a.ps. They dissolved when I tried to inspect them, or dimmed, or slid dizzyingly away, like a ship's stern yawing down the dark lee slope of a wave.

BUT HE SAID UNTO JESUS, And who is my neighbor?

And Jesus answering said, A certain man went down from Jerusalem to Jericho, and fell among thieves.

And he said unto him, Who is my neighbor?

But a certain Samaritan came where he was.

And went to him, and bound up his wounds, and brought him to an inn, and took care of him.

And he said unto him, Which now, thinkest thou, was neighbor unto him that fell among the thieves?

And he said unto him, Who IS IS my neighbor? my neighbor?

And Jesus answering said, A certain man went down from Jerusalem to Jericho, and fell among thieves.

Who IS IS my neighbor? my neighbor?

Then said Jesus unto him, Go, and do thou likewise.

This was my "Terwilliger bunts one." This and similar fragments of Biblical language played in my head like a record on which the needle has stuck, played at the back of my mind and moved at the root of my tongue and sounded deep in my ears without surcease. Who is my neighbor?

Every July for four years, Amy and I trotted off to a Presbyterian church camp. It was cheap, wholesome, and nearby. There we were happy, loose with other children in cabins under pines. If our parents had known how pious and low church this camp was, they would have yanked us. We memorized Bible chapters, sang rollicking hymns around the clock, held nightly devotions including extemporaneous prayers, and filed out of the woods to chapel twice on Sundays dressed in white shorts. The faith-filled theology there was only half a step out of a tent; you could still smell the sawdust.

We met all sorts of girls at camp. There were a dozen girls from an orphanage, who had never been adopted. Among these I admired an older girl named Liz-a large-framed, bony girl with dry blond curls and high red cheekbones, who wore a wool lumberjack shirt. Every Sunday night, gathered in our bare old rec hall of a chapel, we children could request a favorite hymn if we could recite a Bible verse. Year after year, big Liz returned unadopted to camp and, Sunday after Sunday, requested "No One Ever Cared for Me Like Jesus."

I had a head for religious ideas. They were the first ideas I ever encountered. They made other ideas seem mean.

For what shall it profit a man, if he shall gain the whole world and lose his own soul? And lose his own soul? And lose his own soul? Know ye that the Lord he is G.o.d: it is he that hath made us, and not we ourselves; we are his people, and the sheep of his pasture. Arise, and take up thy bed, and walk. And he said unto him, WHO IS MY NEIGHBOR WHO IS MY NEIGHBOR?

Who shall ascend into the hill of the Lord? or who shall stand in his holy place? He that hath clean hands, and a pure heart; who hath not lifted up his soul unto vanity, nor sworn deceitfully.

The earth is the Lord's, and the fulness thereof; the world, and they that dwell therein. The heavens declare the glory of G.o.d; and the firmament sheweth his handywork. Verily I say unto you, that one of you shall betray me.

Every summer we memorized these things at camp. Every Sunday in Pittsburgh we heard these things in Sunday school. Every Thursday we studied these things, and memorized them, too (strictly as literature, they said), at school. I had miles of Bible in memory: some perforce, but most by hap, like the words to songs. There was no corner of my brain where you couldn't find, among the files of clothing labels and heaps of rocks, among the swarms of protozoans and shelves of novels, whole tapes and snarls and reels of Bible. Later, before I left Pittsburgh for college, I would write several poems in deliberate imitation of its sounds, those repeated feminine endings followed by thumps, or those long hard beats followed by softness. Selah.

The Bible's was an unlikely, movie-set world alongside our world. Light-shot and translucent in the pallid Sunday-school watercolors on the walls, stormy and opaque in the dense and staggering texts they read us placidly, sweet-mouthed and earnest, week after week, this world interleaved our waking world like dream.

The adult members of society adverted to the Bible unreasonably often. What arcana! Why did they spread this scandalous doc.u.ment before our eyes? If they had read it, I thought, they would have hid it. They didn't recognize the vivid danger that we would, through repeated exposure, catch a case of its wild opposition to their world. Instead they bade us study great chunks of it, and think about those chunks, and commit them to memory, and ignore them. By dipping us children in the Bible so often, they hoped, I think, to give our lives a serious tint, and to provide us with quaintly magnificent s.n.a.t.c.hes of prayer to produce as charms while, say, being mugged for our cash or jewels.

In Sunday school at the Shadyside Presbyterian Church, the handsome father of rascal Jack from dancing school, himself a vice-president of Jones & Laughlin, whose wife was famous at the country club for her tan, held a birch pointer in his long fingers and shyly tapped the hanging paper map, shyly because he could see we weren't listening. Who would listen to this? Why on earth were we here? There in blue and yellow and green were Galilee, Samaria itself, and Judaea, he said-and I pretended to pay attention as a courtesy-the Sea of Galilee, the river Jordan, and the Dead Sea. I saw on the hanging map the coasts of Judaea by the far side of Jordan, on whose unimaginable sh.o.r.es the pastel Christ had maybe uttered such cruel, stiff, thrilling words: Sell whatsoever thou hast.

James and John, the sons of Zebedee, he made them fishers of men. And he came to the Lake of Gennesaret, and he came to Capernaum. And he withdrew in a boat. And a certain man went down from Jerusalem to Jericho. See it here on the map? Down. He went down, and fell among thieves.

And the swine jumped over the cliff.

And the voice cried, Samuel, Samuel. And the wakened boy Samuel answered, Here am I. And at last he said, Speak.

Hear O Israel, the Lord is one.

And Peter said, I know him not; I know him not; I know him not. And the rich young ruler said, What must I do? And the woman wiped his feet with her hair. And he said, Who touched me?

And he said, Verily, verily, verily, verily; life is not a dream. Let this cup pa.s.s from me. If it be thy will, of course, only if it be thy will.

I GOT MY ROCK COLLECTION GOT MY ROCK COLLECTION from our grandparents' paper boy. He handed it to me in three heavy grocery bags; he said he had no time for a rock collection. Amy and I visited Oma and Company every Friday; while Mary cooked dinner, I roamed their solemn neighborhood, where our family would, as it happened, soon live ourselves. The indigenous children kept mum inside their stone houses; the paper boy-having pedaled his thick black bike, plus rocks, up from an Italian neighborhood down the hill-was the only sign of life. from our grandparents' paper boy. He handed it to me in three heavy grocery bags; he said he had no time for a rock collection. Amy and I visited Oma and Company every Friday; while Mary cooked dinner, I roamed their solemn neighborhood, where our family would, as it happened, soon live ourselves. The indigenous children kept mum inside their stone houses; the paper boy-having pedaled his thick black bike, plus rocks, up from an Italian neighborhood down the hill-was the only sign of life.

The paper boy got the rock collection from a solitary old man named Downey, who until recently had lived just up the street from my grandparents. Mr. Downey had collected the rocks from all over. He had given them to the paper boy, in the grocery bags, explaining that he knew no one else. Then he had died. The paper boy, who was kind but very busy, did not remember the names of any of the rocks except the stalact.i.tes; he recalled, not helpfully, that Mr. Downey had found them in a cave. The stalact.i.tes were sorry-looking at their broken ends: sharp, yellow, and hollow, like fallen deciduous teeth.

Now I had these rocks. They were yellow, green, blue, and red. Most were the size of half-bricks. One small white wafer had blue stone stars. Some were k.n.o.bby, some grainy, some slick. There was a shining brown mineral the color of shoe polish; its cubed crystals made a scratchy chunk. There was a rusty cl.u.s.ter of petrified roses. There was a frozen froth of platinum bubbles. It was a safe bet all these rocks had names.

From the Homewood Library's children's books I could learn only the vaguest, overamazed stories of "the earth's crust," which didn't interest me. What were all these yellow and blue rocks in my room, and why did I never find any rocks so various and sharp? From library adult books I got the true dope, and it was a long story, which involved me in a project less like bird-watching or stamp collecting than like life in a forensic laboratory. The books taught me to identify the rocks. They also lent me a vision of things, and informed me about a bizarre set of people.

You got Frederick H. Pough's Field Guide to Rocks and Minerals Field Guide to Rocks and Minerals. Using this and other books, you identified your rocks one by one, keying them out as you key out plants with Gray's Manual Manual, through a series of diagnostic tests.

You determined, for instance, where your rock fit on Mohs' scale of hardness. Mr. Mohs (Herr Mohs, actually) had devised a series of homespun tests for rock hardness, much as Mr. Beaufort had dreamed up homespun tests for wind force. Does smoke rise straight from the chimney? The wind is not blowing. Is your house falling over? It's blowing force ten. Number one on Mohs' scale was soft rock, to wit, talc. Can you crumble it in your fingers? It's soft. What you have there is talc.u.m powder. Can it scratch a fingernail, a copper penny, a pane of gla.s.s, and a knife blade? It's quartz. You can scratch quartz with topaz, ruby, and diamond. If it makes your diamond saw clog, it's a meteorite.

You subjected your rocks to scratch tests. You procured a piece of bathroom tile (always, in the books, hexagonal, such as you find in old New York bathrooms and nowhere else) and stroked your rock across its unglazed underside. What color was the streak?

Yellow pyrite drew a black streak, black limonite drew a yellow streak, and black hemat.i.te drew a red streak. (Some minerals, Pough explained, to my mystification, are "not truly black...but only look so.") The streaks were brilliant pigments, richer than crayon strokes, deeper than pastel strokes; they were powdery pure pigments bright as grease paint. It was a wonder the earth wasn't streaked like a Van Gogh landscape, and all the people streaked like warpath Indians.

You performed other testing marvels on your rocks-at least, the people in the books did. They dripped acid on them; they shone ultraviolet lights on them; they split them, sawed them, and set them on fire (diamond "burns easily"). They smelled and tasted them. Cracked a.r.s.enic smells like garlic. Epsomite is bitter, halotrichite tastes like ink, soda niter "tastes cooling." Those ardent mineralogists who licked their chrysocolla specimens found that their tongues got stuck.

During these tests, the rocks behaved with scarcely less vigor than the scientists. Borax "swells into great 'worms' as it melts, and finally shrinks to almost nothing." Other minerals "may send up little horns." Some change color when you heat them, or glow, or melt, burn, dissolve, or turn magnetic. Some fly apart (decrepitate). If you should happen to place a hunk of gummite on film, it will take its own picture.

At the end of all these tests, especially if you knew where you found your rocks, you could learn what you had in the paper bags. Or you could, as I did, read the texts' mineral descriptions a thousand times until you hit on something that sounded plausible. You could also go directly to the answers by studying the labeled rocks for sale at the Carnegie Museum shop.

Eventually I identified the rocks. The petrified roses were barite, probably from Oklahoma. The scratchy brown mineral was bauxite-aluminum ore. The black gla.s.s was obsidian; the booklet of transparent sheets was mica; the goldeny iridescent handful of soft crystals was chalcopyrite, an ore of copper, whose annoying name I loved to repeat: chalcopyrite. I had shiny green hornblende, rose quartz, starry moss agate, and dull hornfels, which was a mere rock. (A mineral is a pure inorganic compound; you can express its const.i.tuents in a chemical formula. A rock is just a mixture of minerals. Worthless, weedy rock is gangue rock.) I had gla.s.sy drops of perlite called Apache tears, bubbly pyrite (fool's gold), and-a favorite-brick-red cinnabar. I had speckly gneiss rock, a chip of crystal tourmaline like a stick of anise candy, and green malachite in a silky chunk. I had milky turquoise, opalized wood, two sorry stalact.i.tes, banded jasper, and a lump of coal.

From the book I learned that there was fine stuff hidden in the earth. In the rock underfoot, in the mountain roadside rock, were sealed pockets lined with crystals. You could break a brown rock and find a vug-a pocket-sharp with amethysts.

In Maine, someone with a hammer had discovered a single feldspar crystal twenty feet across. Other New England outcrops have yielded "sparkling blue beryl crystals 18 to 27 feet long." Copper miners find peac.o.c.k ore, a bronze mineral locked in rock, which tarnishes at once to "an astonishing royal purple" when it hits the light.

The rock I'd seen in my life looked dull because in all ignorance I'd never thought to knock it open. People have cracked ordinary New England pegmat.i.te-big, coa.r.s.e granite-and laid bare cl.u.s.ters of red garnets, or topaz crystals, chrysoberyl, spodumene, emerald. They held in their hands crystals that had hung in a hole in the dark for a billion years unseen.

I was all for it. I would lay about me right and left with a hammer, and bash the landscape to bits. I would crack the earth's crust like a pinata and spread to the light the vivid prizes in chunks within. Rock collecting was opening the mountains. It was like diving through my own interior blank blackness to remember the startling pieces of a dream: there was a blue lake, a witch, a lighthouse, a yellow path. It was like poking about in a grimy alley and finding an old, old coin. Nothing was as it seemed. The earth was like a shut eye. Mother's not dead, dear-she's only sleeping. Pry open the thin lid and find a crystalline intelligence inside, a rayed and sidereal beauty. Crystals grew inside rock like arithmetical flowers. They lengthened and spread, adding plane to plane in awed and perfect obedience to an absolute geometry that even the stones-maybe only the stones-understood.

The study of minerals reverted alarmingly to the cla.s.sification of crystals, which in turn smacked dismayingly of math. I was in this, as it were, for my health. Nothing compelled me to finish reading a sentence that began "The macro-domes become, for obvious reasons, clinodomes clinodomes," or "Remember this: b b-pinacoid equals the brachypinacoid." Yet even the mumbo-jumbo had its charms. It sounded like Sid Caesar. Pough's Field Guide to Rocks and Minerals Field Guide to Rocks and Minerals included a diagram of what looked like an angular inner tube or a corduroy ha.s.sock. The caption explained the diagram: "Rutile sixling." Here also was a line drawing of a set of penetration twins, and a meticulous side view of a pinacoid, labeled "Side view of pinacoid." Chrysoberyl, I learned-a blue-green aluminum oxide-has the exuberant-sounding "habit" of trilling. included a diagram of what looked like an angular inner tube or a corduroy ha.s.sock. The caption explained the diagram: "Rutile sixling." Here also was a line drawing of a set of penetration twins, and a meticulous side view of a pinacoid, labeled "Side view of pinacoid." Chrysoberyl, I learned-a blue-green aluminum oxide-has the exuberant-sounding "habit" of trilling.

The awesome story of earth's crust's buckling and shifting unfortunately failed to move me in the slightest. But here was an interesting find. Only a quirk of chemistry prevented the ground's being a heap of broken rubble. I hadn't thought of that. Why isn't it all a heap of broken rubble? For the bedrock fractures and cleaves, notoriously; it uplifts, crumbles, splits, shears, and folds. All this action naturally shatters the crust. But it happens that the abundant element silicon is water soluble at high temperatures. This element heals the scars. Dissolved silicon seeps everywhere underground and slips into fissures and veins; it fills in, mends, and cements the rubble, over and over, from age to age. It heals all the thick wounds on the continents' skin and under the oceans; it solidifies as it cools, uplifting, and forms pale veins of scarry quartz running through everything; it dominates the granite bedrock on which we build our cities, the granite interior of mountains, and the beds that underlie the plains.

No one has ever found a rock as old as the earth. All the old rock went under. The age of the earth is 4.8 billion years, and of the oldest rock, a Labrador greenstone, a mere 3.8 billion years. The rock we see is mostly a mishmash of scar tissue and recent rubble. If there were no soluble silicon, how many feet thick, or miles thick, I wondered, would the sterile rubble be?

Many of the rocks in my collection were veins of some bright mineral in a matrix of quartz. The round stones I gathered along Lake Erie's sh.o.r.e were striped with bands of white or tinted quartz. The planet was all healed rubble, rubble joined and smoothed as if a G.o.d had rolled it over in his hands like snow.

People who collected rocks called themselves "rockhounds." In the worst of cases, they called their children "pebble pups." Rockhounds seemed to be wild and obsessive amateurs, my kind of people, who had stepped aside from the rush of things to devote themselves to folly.

A collector would be foolish, one book advised, to sell to a gem dealer a fine crystal of, say, ruby or sapphire, when it was obviously of much more value to the collector uncut-a brilliant stub growing from a rough matrix as it was found, a prize specimen in a beloved collection. One book cautioned me against refining any gold I found-any nuggets, dust, or gold-bearing quartz. For I could own or transport all the raw native gold I wanted, but if I refined it in any way I was "obliged by law" to sell it to a licensed gold dealer or the U.S. mint.

These, then, were books which advised, in detail, how to avoid making money, right here in America. Right here in Pittsburgh were people who dug up the nation's mineral wealth, played with it, stored it behind gla.s.s, looked at it, fled in a flat-out sprint from anyone who threatened to buy it for dollars, and ultimately gave it to the paper boy. I applauded this with the uncanny, exultant, spreading sensation you have when you realize that your name is really legion-but I wasn't so persnickety that I wasn't inspired by a 1953 story of two Western collectors. These men found two petrified logs that made their Geiger counters click. Uranium-bearing silicates had replaced the logs' wood. The men sold the petrified logs to the Atomic Energy Commission for $35,000.

Some rockhounds had recently taken up scuba diving. These people dove down into "brawling mountain streams" with tanks on their backs to look for crystals underwater, or to pan for gold. The gold panning was especially good under boulders in rapids.

One book included a photograph of a mild-looking hobbyist in his bas.e.m.e.nt workshop: he sawed chunks of Utah wonderstone into wavy, landscapy-looking slabs suitable for wall hangings. Here was a photograph of rockhounds in the field: Two men on a steep desert hillside delightedly smash a flat rock to bits with two hammers. Far below stands a woman in a dress and sensible shoes, doing nothing. Here is their campsite: a sagging black pyramidal tent pitched on the desert floor. A Studebaker fender nudges the foreground. The very hazards of field collecting tempted me: "tramping for miles over rough country," facing cold, heat, rain, cactus, rough lava, insects, rattlesnakes, scorpions, and glaring alkali flats. Collectors fell over boulders and damaged crystals. Their ballpoint pens ran out of ink. They carried sledgehammers, chains, snakebite kits, Geiger counters, canteens, tarps, maps, three-ton hydraulic jacks, mattocks, gold pans, dynamite (see The Blaster's Handbook The Blaster's Handbook, published by Du Pont), cuff-link boxes, gads, sacks, ultraviolet lamps, pry bars, folding chairs, and the inevitable bathroom tiles.

Getting back home alive only aggravated their problems. If you bring home five hundred pounds of rocks from an average collecting trip, what do you do with them? Splay them attractively about the garden, one book suggested lamely. Give them away. Hold yard sales. One collector left five tons of rough rock in his yard when he moved. The books stopped just short of advising collectors how to deal with their wives.

The problems of storage and display were surprising. A roomful of rocks was evidently as volatile as a roomful of baby racc.o.o.ns. Once you commit yourself to your charges, you scarcely dare take your eyes off them.

If you have some sky-blue chalcanthite on a shelf, or gypsum, or borax, or trona, it will crumble of its own accord to powder. Your crystals of realgar (an orange-red ore of a.r.s.enic) will "disintegrate to a dust of orpiment," which in turn will decompose. Your hanksite and soda niter will absorb water from the air and dissolve into little pools. Your proust.i.te and silver ores will tarnish and then decompose. Your orange beryl will fade to pink, your brown topaz will lose all its color, your polished opals will craze. Finally, your bra.s.s-yellow marcasite will release sulfuric acid. The acid will eat your labels, your shelves, and eventually your whole collection.

On the other hand, rock collecting had unique rewards. For example, the thinner you sliced your specimens when you sawed them up, the more specimens you had. In this way you could multiply your collection without leaving home.

When you pry open the landscape, you find wonders-gems made of corpses, even, and excrement. In Puget Sound you could find fossil oysters and clams that had turned to agate, called agatized oysters, agatized clams. In Colorado you could find fossil shrimps turned to scarlet and precious carnelian. People have found dinosaur bones turned to jasper.

Petrified wood is abundant in every county of every state, because soluble silicon seeps everywhere. In Southern states you could find petrified leaves and twigs. There are often worm borings in petrified wood, and inside the opalized tunnels you might find gemmy piles of petrified worm excrement. Dinosaur excrement fossilizes, too. Bird and bat guano petrifies into a mineral called taranakite, which a book described as "unctuous to touch."

I wanted to find these things. I also wanted to find wulfenite crystals the color of cranberries, from Chile, and big transparent cubes of Iceland spar. In Durango, Mexico, I might find rosy adamite, tabular orange sulfenite crystals, mimet.i.te in yellow mammillary crusts, or light green pyramids of scorodite. In Paterson, New Jersey, I could find great pearly crystals of phlogopite, or radiating splinters of white pectolite, or stilbite in bundles like cauliflower. People made extensive mineral discoveries in Tsumeb, Southwest Africa, in Haddam, Connecticut, in Westphalia, Germany, and in Westchester County, New York. Every day for the past two hundred years, one book said, someone has stumbled "on a brand-new outcrop that n.o.body before has explored." "A lifetime of study," another book said stirringly, "would not make you the master of every phase" of mineralogy.

I thought to specialize in interesting names. In Ma.s.sachusetts and Connecticut, collectors found a mineral called sillimanite, named for a Yale professor. My specialized collection would feature sillimanite, radio opal, yowah nuts, and agaty potch.

Rock collecting is pleasantly simple for a bookish child, for it scarcely matters which rocks you actually have and which you only imagine having. I might as well throw into my future collection some clams that had turned to agate, too, and some carnelian shrimps. Similarly, field trips don't take much gas. You never think, How could I get a jeep? You forget your condition. You do not see yourself as a figure; you see the world.

From what box canyons have you not extricated yourself, hand over hand, hauling your pickax and Geiger counter in your knapsack? Sharp eyes-you spotted that rattlesnake. I knew you would. You could write a book: the fiery raw glare of the alkali flats, how it shrivels your eyes and blinds your brain in two holes like gimlets, whatever gimlets are, and your jeep tracks crumble over it white on white; and how, when you finally got to the hills you held your hot hammer by its wood handle, planted your big-booted feet in the hillside and felt the hot hill rock through your coa.r.s.e pants on your thighs. And you broke rocks, hit rocks that cracked like ice in your palm, with your buddy beside you, both of you seeing what you could see. Doubloons, maybe, again, or uranium.

There were now 340 rocks in my room. I labeled them. On November evenings alone in my room while it rained, on February nights while snow piled in the buckeye boughs outside my window, when the paper on the Panama Ca.n.a.l was out of the way, and the Latin memorized, and my friends talked to on the phone until there was nothing left of the schoolday to a.n.a.lyze; while Margaret ran water in the kitchen and Mother talked Molly into going to bed and Father poked the fold from his section of the evening paper and Amy sat silent on the floor with her spelling book and played with the bows on Father's shoes, I played at my maple desk with books and rocks.

From stiff index cards I cut tiny squares, an eighth of an inch by an eighth of an inch. Holding the squares with tweezers, I printed numerals on them, never thinking to print the numerals before cutting the paper. In a dizzying meticulous mess I slid the wee numbers against the drippy rubber slope of a mucilage jar, and wiggled them onto flat faces of the rocks. When the glue dried the next day, I dabbed a brushful of varnish over rock and number. I was cataloguing the collection.

As the books advised, I listed by number in a notebook each specimen's name, date, and locality. "Locality," when it wasn't Mr. Downey's grocery bags, was often the Carnegie Museum shop, where I bought trays of thumbnail minerals glued to cardboard sheets. I soaked the glue from these and labeled them with my own compulsive little numbers. When one day I discovered I had, characteristically, lost the notebook catalogue, I discovered simultaneously that I didn't need it. I knew them by sight: that favorite dry red cinnabar, those Lake Erie ruby granites and flintstones, Mr. Downey's big chunks of pale oolite, dark wavy serpentine, hornblende, gneiss, tourmaline, Apache tears, all of them.

Often I imagined the solitary Mr. Downey, that invisible man from my grandparents' rarefied street of executives and lawyers. Every few years he had unearthed from the cellar his loose khaki pants and his tight hiking boots. He clambered into a pickup truck concealed in his ivy-grown garage, and took off for Oklahoma, where he scouted the lonesome hills with a hammer. He filled his stout sack with moss agate, chalcopyrite, and petrified roses. For reasons unimaginable, he drove back to hushed old Pittsburgh, pulled into his secret driveway, changed his clothes, and sat for years on end at his library desk to study his rocks. When he felt something inside him pulling him down, he called to him the black-haired paper boy, who was collecting quarters on his black bike.

Maybe he hadn't died at all. Maybe he'd simply escaped underground. He cracked open Pittsburgh like a geode. Who knew what lay inside the streaked hillsides under the highporched workers' houses, under the streetcar tracks, under the flat or sloping greens of the country-club golf courses, under the dancing-school building, the trout-stocked streams in the highlands or the dried-out stream under the bridge in Frick Park, under the sled-riding hills, the Ellis School, the stained opened cuts on the boulevard roadsides into town-who knew? He had screwed in wedges here and there, tapped them each once or twice, and laid bare the invisible city: crystal-crusted cavities lined with fire opals and red plume agates, where cobalt bloomed and onyx and jacinth grew sharp. He visited the underground corridors where spinel crystals twinned underfoot, and blue cubes of galena cut his hands, and carnelian nodules hung wet overhead among pale octahedrons of fluorite, among frost agates and moonstones, red jasper, blue lazulite, stubs of garnet, black chert. Of course he hadn't come back. Who would?

AFTER I I READ READ The Field Book of Ponds and Streams The Field Book of Ponds and Streams several times, I longed for a microscope. Everybody needed a microscope. Detectives used microscopes, both for the FBI and at Scotland Yard. Although usually I had to save my tiny allowance for things I wanted, that year for Christmas my parents gave me a microscope kit. several times, I longed for a microscope. Everybody needed a microscope. Detectives used microscopes, both for the FBI and at Scotland Yard. Although usually I had to save my tiny allowance for things I wanted, that year for Christmas my parents gave me a microscope kit.

In a dark bas.e.m.e.nt corner, on a white enamel table, I set up the microscope kit. I supplied a chair, a lamp, a batch of jars, a candle, and a pile of library books. The microscope kit supplied a blunt black three-speed microscope, a booklet, a scalpel, a dropper, an ingenious device for cutting thin segments of fragile tissue, a pile of clean slides and cover slips, and a dandy array of corked test tubes.

One of the test tubes contained "hay infusion." Hay infusion was a wee brown chip of gra.s.s blade. You added water to it, and after a week it became a jungle in a drop, full of one-celled animals. This did not work for me. All I saw in the microscope after a week was a wet chip of dried gra.s.s, much enlarged.

Another test tube contained "diatomaceous earth." This was, I believed, an actual pinch of the white cliffs of Dover. On my palm it was an airy, friable chalk. The booklet said it was composed of the silicaceous bodies of diatoms-one-celled creatures that lived in, as it were, small gla.s.s jewelry boxes with fitted lids. Diatoms, I read, come in a variety of transparent geometrical shapes. Broken and dead and dug out of geological deposits, they made chalk, and a fine abrasive used in silver polish and toothpaste. What I saw in the microscope must have been the fine abrasive-grit enlarged. It was years before I saw a recognizable, whole diatom. The kit's diatomaceous earth was a bust.

All that winter I played with the microscope. I prepared slides from things at hand, as the books suggested. I looked at the transparent membrane inside an onion's skin and saw the cells. I looked at a section of cork and saw the cells, and at sc.r.a.pings from the inside of my cheek, ditto. I looked at my blood and saw not much; I looked at my urine and saw long iridescent crystals, for the drop had dried.

All this was very well, but I wanted to see the wildlife I had read about. I wanted especially to see the famous amoeba, who had eluded me. He was supposed to live in the hay infusion, but I hadn't found him there. He lived outside in warm ponds and streams, too, but I lived in Pittsburgh, and it had been a cold winter.

Finally late that spring I saw an amoeba. The week before, I had gathered puddle water from Frick Park; it had been festering in a jar in the bas.e.m.e.nt. This June night after dinner I figured I had waited long enough. In the bas.e.m.e.nt at my microscope table I spread a sc.u.mmy drop of Frick Park puddle water on a slide, peeked in, and lo, there was the famous amoeba. He was as blobby and grainy as his picture; I would have known him anywhere.

Before I had watched him at all, I ran upstairs. My parents were still at table, drinking coffee. They, too, could see the famous amoeba. I told them, bursting, that he was all set up, that they should hurry before his water dried. It was the chance of a lifetime.

Father had stretched out his long legs and was tilting back in his chair. Mother sat with her knees crossed, in blue slacks, smoking a Chesterfield. The dessert dishes were still on the table. My sisters were nowhere in evidence. It was a warm evening; the big dining-room windows gave onto blooming rhododendrons.

Mother regarded me warmly. She gave me to understand that she was glad I had found what I had been looking for, but that she and Father were happy to sit with their coffee, and would not be coming down.

She did not say, but I understood at once, that they had their pursuits (coffee?) and I had mine. She did not say, but I began to understand then, that you do what you do out of your private pa.s.sion for the thing itself.

I had essentially been handed my own life. In subsequent years my parents would praise my drawings and poems, and supply me with books, art supplies, and sports equipment, and listen to my troubles and enthusiasms, and supervise my hours, and discuss and inform, but they would not get involved with my detective work, nor hear about my reading, nor inquire about my homework or term papers or exams, nor visit the salamanders I caught, nor listen to me play the piano, nor attend my field hockey games, nor fuss over my insect collection with me, or my poetry collection or stamp collection or rock collection. My days and nights were my own to plan and fill.

When I left the dining room that evening and started down the dark bas.e.m.e.nt stairs, I had a life. I sat to my wonderful amoeba, and there he was, rolling his grains more slowly now, extending an arc of his edge for a foot and drawing himself along by that foot, and absorbing it again and rolling on. I gave him some more pond water.

I had hit pay dirt. For all I knew, there were paramecia, too, in that pond water, or daphniae, or stentors, or any of the many other creatures I had read about and never seen: volvox, the spherical algal colony; euglena with its one red eye; the elusive, gla.s.sy diatom; hydra, rotifers, water bears, worms. Anything was possible. The sky was the limit.

WHAT DOES IT FEEL LIKE to be alive? to be alive?

Living, you stand under a waterfall. You leave the sleeping sh.o.r.e deliberately; you shed your dusty clothes, pick your barefoot way over the high, slippery rocks, hold your breath, choose your footing, and step into the waterfall. The hard water pelts your skull, bangs in bits on your shoulders and arms. The strong water dashes down beside you and you feel it along your calves and thighs rising roughly back up, up to the roiling surface, full of bubbles that slide up your skin or break on you at full speed. Can you breathe here? Here where the force is greatest and only the strength of your neck holds the river out of your face? Yes, you can breathe even here. You could learn to live like this. And you can, if you concentrate, even look out at the peaceful far bank where maples grow straight and their leaves lean down. For a joke you try to raise your arms. What a racket in your ears, what a scattershot pummeling!

It is time pounding at you, time. Knowing you are alive is watching on every side your generation's short time falling away as fast as rivers drop through air, and feeling it hit.

Who turned on the lights? You did, by waking up: you flipped the light switch, started up the wind machine, kicked on the flywheel that spins the years. Can you catch hold of a treetop, or will you fly off the diving planet as she rolls? Can you ride out the big blow on a coconut palm's trunk until you fall asleep again, and the winds let up? You fall asleep again, and you slide in a dream to the palm tree's base; the winds die off, the lights dim, the years slip away as you idle there till you die in your sleep, till death sets you cruising down the Tamiami Trail.

Knowing you are alive is feeling the planet buck under you, rear, kick, and try to throw you; you hang on to the ring. It is riding the planet like a log downstream, whooping. Or, conversely, you step aside from the dreaming fast loud routine and feel time as a stillness about you, and hear the silent air asking in so thin a voice, Have you noticed yet that you will die? Do you remember, remember, remember? Then you feel your life as a weekend, a weekend you cannot extend, a weekend in the country.

O Augenblick verweile.