Many oyster and c.o.c.kle sh.e.l.ls were on its sh.o.r.e. This was the largest river we had yet come to, and it gave us much trouble to cross it, for, wherever it appeared fordable, the bed was so soft and muddy, that we dared not venture to take our horses into it. By tracing it upwards for eight miles, we at last found a rocky shelf extending across, by which we were enabled to get to the other side. At the point where we crossed, it had become only a narrow rocky channel; but there was a strong stream running, and I have no doubt, higher up, the water might probably have been quite fresh. Its waters flowed from a direction nearly of west-north-west, and appeared to emanate from the high rugged ranges behind King George's Sound. The country about the lower or broad part of this river, as far as I traced it, was rocky and bad; but higher up, there was a good deal of gra.s.s, and the land appeared improving. In the distance, the hills seemed less rocky and more gra.s.sy, and might probably afford fair runs for sheep. Upon the banks of the river were a few casuarinae and more of the tea-tree, and b.a.s.t.a.r.d gum, than we had seen before upon any other watercourse.

Upon crossing the river, we found the country getting more wooded, with a stunted-looking tree, apparently of the same species as the stringy bark, with b.a.s.t.a.r.d gums, and large banksias, the intervals being filled up with gra.s.s-trees and brush, or shrubs, common at King George's Sound. At dark we could find no water, and I therefore pushed on by moonlight, making Wylie lead one of the horses whilst I drove the rest after him. At nine o'clock, we came to a deep valley with plenty of water and gra.s.s in it, and here we halted for the night, after a stage of full thirty miles. The early part of the morning had been very wet, and it continued to rain partially for the greatest part of the day, rendering us very cold and uncomfortable. At night it was a severe frost.

July 4.--Our horses having been a good deal f.a.gged yesterday, I did not disturb them early, and it was nearly noon when we moved away from our encampment, crossing the main watercourse, of which the ponds we were upon last night were only a branch. In the larger channel, there were many fine pools of water, connected by a strongly running stream in a deep narrow bed, and which wound at a course of E. 25 degrees S. through a valley of soft, spongy, peaty formation, and over which we had much trouble in getting our horses, one having sunk very deep, and being with difficulty extricated. After travelling two miles and a half, we obtained a view of Bald Island, bearing S. 15 degrees W.; and in two miles and a half more, we crossed a fine chain of ponds, taking its course through narrow valleys between hills of granite; these valleys and the slopes of the hills were heavily timbered; the soil was very rich, either a reddish loam, or a light black mixed with sand, and the gra.s.s interspersed among the trees was abundant and luxuriant. After ascending the range, we pa.s.sed princ.i.p.ally over stony hills, and valleys heavily timbered, and with brush or underwood, filling up the interstices of the trees.

Ten miles from our last night's camp we crossed the tracks of horses, apparently of no very old date, this being the first symptom we had yet observed of our approach towards the haunts of civilised man. The day was cold with heavy squalls of rain, and as the night appeared likely to be worse, I halted early, after a stage of thirteen miles. After dark the rain ceased, and the night cleared up, but was very cold.

July 5.--Another rainy day, and so excessively cold that we were obliged to walk to keep ourselves at all warm; we spent a miserable time, splashing through the wet underwood, and at fifteen miles we pa.s.sed a fresh water lake, in a valley between some hills. This Wylie recognised as a place he had once been at before, and told me that he now knew the road well, and would act as guide, upon which I resigned the post of honour to him, on his promising always to take us to gra.s.s and water at night. Two miles and a half beyond the lake, we came to a fresh water swamp, and a mile beyond that to another, at which we halted for the night, with plenty of water, but very little gra.s.s. During the day, we had been travelling generally through a very heavily timbered country.

At night the rain set in again, and continued to fall in torrents at intervals; we got dreadfully drenched, and suffered greatly from cold and want of rest, being obliged to stand or walk before the fire, nearly the whole night.

July 6.--The morning still very wet and miserably cold. With Wylie acting as guide, we reached in eight miles, the Candiup river, a large chain of ponds, connected by a running stream, and emptying into a wide and deep arm of the sea, with much rich and fertile land upon its banks. The whole district was heavily timbered, and had good gra.s.s growing amongst the trees. From the very heavy rains that had fallen, we had great trouble in crossing many of the streams, which were swollen by the floods into perfect torrents. In the Candiup river I had to wade, cold and chill as I was, seven times through, with the water breast high, and a current that I with difficulty could keep my feet against, in order to get the horses over in safety; the only fordable place was at a narrow ledge of rocks, and with so strong a stream, and such deep water below the ledge, I dared not trust Wylie to lead any of them, but went back, and took each horse across myself. The day was bitterly cold and rainy, and I began to suffer severely from the incessant wettings I had been subject to for many days past.

Four miles beyond the Candiup river, we came to King's river, a large salt arm of Oyster Harbour, here my friend Wylie, who insisted upon it that he knew the proper crossing place, took me into a large swampy mora.s.s, and in endeavouring to take the horses through, three of them got bogged and were nearly lost, and both myself and Wylie were detained in the water and mud for a couple of hours, endeavouring to extricate them.

At last we succeeded, but the poor animals were sadly weakened and strained, and we were compelled to return back to the same side of the river, and encamp for the night, instead of going on to King George's Sound as I had intended!

Fortunately there was tolerable gra.s.s, and fresh water lay every where about in great abundance, so that the horses would fare well, but for ourselves there was a cheerless prospect. For three days and nights, we had never had our clothes dry, and for the greater part of this time, we had been enduring in full violence the pitiless storm--whilst wading so constantly through the cold torrents in the depth of the winter season, and latterly being detained in the water so long a time at the King's river, had rendered us rheumatic, and painfully sensitive to either cold or wet. I hoped to have reached Albany this evening, and should have done so, as it was only six miles distant, if it had not been for the unlucky attempt to cross King's river. Now we had another night's misery before us, for we had hardly lain down before the rain began to fall again in torrents. Wearied and worn-out as we were, with the sufferings and fatigues of the last few days, we could neither sit nor lie down to rest; our only consolation under the circ.u.mstances being, that however bad or inclement the weather might be, it was the last night we should be exposed to its fury.

July 7.--Getting up the horses early, we proceeded up the King's river, with a view of attempting to cross, but upon sounding the depths in one or two places, I found the tide, which was rising, was too high; I had only the alternative, therefore, of waiting for several hours until the water ebbed, or else of leaving the horses, and proceeding on without them. Under all the circ.u.mstances, I decided upon the latter; the rain was still falling very heavily, and the river before us was so wide and so dangerous for horses, from its very boggy character, that I did not think it prudent to attempt to force a pa.s.sage, or worth while to delay to search for a proper crossing place. There was good feed for the horses where they were, and plenty of water, so that I knew they would fare better by remaining than if they were taken on to the Sound; whilst it appeared to me more than probable that I should have no difficulty, whenever I wished to get them, to procure a guide to go for and conduct them safely across, at the proper crossing place.

Having turned our horses loose, and piled up our baggage, now again greatly reduced, I took my journals and charts, and with Wylie forded the river about breast high. We were soon on the other side, and rapidly advancing towards the termination of our journey; the rain was falling in torrents, and we had not a dry shred about us, whilst the whole country through which we pa.s.sed, had, from the long-continued and excessive rains, become almost an uninterrupted chain of puddles. For a great part of the way we walked up to our ankles in water. This made our progress slow, and rendered our last day's march a very cold and disagreeable one.

Before reaching the Sound, we met a native, who at once recognised Wylie, and greeted him most cordially. From him we learnt that we had been expected at the Sound some months ago, but had long been given up for lost, whilst Wylie had been mourned for and lamented as dead by his friends and his tribe. The rain still continued falling heavily as we ascended to the brow of the hill immediately overlooking the town of Albany--not a soul was to be seen--not an animal of any kind--the place looked deserted and uninhabited, so completely had the inclemency of the weather driven both man and beast to seek shelter from the storm.

For a moment I stood gazing at the town below me--that goal I had so long looked forward to, had so laboriously toiled to attain, was at last before me. A thousand confused images and reflections crowded through my mind, and the events of the past year were recalled in rapid succession.

The contrast between the circ.u.mstances under which I had commenced and terminated my labours stood in strong relief before me. The gay and gallant cavalcade that accompanied me on my way at starting--the small but enterprising band that I then commanded, the goodly array of horses and drays, with all their well-ordered appointments and equipment were conjured up in all their circ.u.mstances of pride and pleasure; and I could not restrain a tear, as I called to mind the embarra.s.sing difficulties and sad disasters that had broken up my party, and left myself and Wylie the two sole wanderers remaining at the close of an undertaking entered upon under such hopeful auspices.

Whilst standing thus upon the brow overlooking the town, and buried in reflection, I was startled by the loud shrill cry of the native we had met on the road, and who still kept with us: clearly and powerfully that voice rang through the recesses of the settlement beneath, whilst the blended name of Wylie told me of the information it conveyed. For an instant there was a silence still almost as death--then a single repet.i.tion of that wild joyous cry, a confused hum of many voices, a hurrying to and fro of human feet, and the streets which had appeared so shortly before gloomy and untenanted, were now alive with natives--men, women and children, old and young, rushing rapidly up the hill, to welcome the wanderer on his return, and to receive their lost one almost from the grave.

It was an interesting and touching sight to witness the meeting between Wylie and his friends. Affection's strongest ties could not have produced a more affecting and melting scene--the wordless weeping pleasure, too deep for utterance, with which he was embraced by his relatives, the cordial and hearty reception given him by his friends, and the joyous greeting bestowed upon him by all, might well have put to the blush those heartless calumniators, who, branding the savage as the creature only of unbridled pa.s.sions, deny to him any of those better feelings and affections which are implanted in the breast of all mankind, and which nature has not denied to any colour or to any race.

Upon entering the town I proceeded direct to Mr. Sherrats', where I had lodged when in King George's Sound, in 1840. By him and his family I was most hospitably received, and every attention shewn to me; and in the course of a short time, after taking a gla.s.s of hot brandy and water, performing my ablutions and putting on a clean suit of borrowed clothes, I was enabled once more to feel comparatively comfortable, and to receive the many kind friends who called upon me.

I feel great pleasure in the opportunity now afforded me of recording the grateful feelings I entertain towards the residents at Albany for the kindness I experienced upon this occasion. Wet as the day was, I had hardly been two hours at Mr. Sherrats before I was honoured by a visit from Lady Spencer, from the Government-resident, Mr. Phillips, and from almost all the other residents and visitors at the settlement,--all vying with each other in their kind attentions and congratulations, and in every offer of a.s.sistance or accommodation which it was in their power to render.

Finding that a vessel would shortly sail for Adelaide, I at once engaged my pa.s.sage, and proceeded to make arrangements for leaving King George's Sound.

To the Governor of the Colony, Mr. Hutt, I wrote a brief report of my journey, which was forwarded, with a copy both of my own and Wylie's depositions, relative to the melancholy loss of my overseer on the 29th April. I then had my horses got up from the King's river, and left them in the care of Mr. Phillips, who had in the most friendly manner offered to take charge of them until they recovered their condition and could be sold.

Wylie was to remain at the Sound with his friends, and to receive from the Government a weekly allowance of provisions, [Note 29: This was confirmed by Governor Hutt.] by order of Mr. Phillips; who promised to recommend that it should be permanently continued, as a reward for the fidelity and good conduct he had displayed whilst accompanying me in the desert.

On the 13th July I wished my friends good bye, and in the afternoon went on board the Truelove to sail for Adelaide; whilst working out of harbour we were accompanied as long as any of the sh.o.r.e boats remained, by some of the natives of the place, who were most anxious to have gone with me to Adelaide. Wylie had given them so flattering an account of South Australia and its pleasures, that he had excited the envy and curiosity of the whole tribe; dozens applied to me to take them, and I really think I could have filled the ship had I been disposed; one or two, more persevering than the rest, would not be denied, and stuck close to the vessel to the last, in the hope that I might relent and take them with me before the pilot boat left, but upon this occurring, to their great discomforture, they were compelled to return disappointed.

On the afternoon of the 26th of July I arrived in Adelaide, after an absence of one year and twenty-six days.

Chapter VI.

CONCLUDING REMARKS.

Having now brought to a close the narrative of my explorations in 1840-1, it may not be out of place to take a brief and cursory review of the whole, and to state generally what have been the results effected. In making this summary, I have no important rivers to enumerate, no fertile regions to point out for the future spread of colonization and civilization, or no n.o.ble ranges to describe from which are washed the debris that might form a rich and fertile district beneath them; on the contrary, all has been arid and barren in the extreme.

Such, indeed, has been the sterile and desolate character of the wilderness I have traversed, and so great have been the difficulties thereby entailed upon me, that throughout by far the greater portion of it, I have never been able to delay a moment in my route, or to deviate in any way from the line I was pursuing, to reconnoitre or examine what may haply be beyond. Even in the latter part of my travels, when within the colony of Western Australia, and when the occasionally meeting with tracts of a better soil, or with watercourses appearing to have an outlet to the ocean, rendered the country one of much greater interest, I was quite unable, from the circ.u.mstances under which I was placed, the reduced and worn-out state of my horses, and the solitary manner in which I was travelling, ever to deviate from my direct line of route, either to examine more satisfactorily the character of the country, or to determine whether the watercourses, some of which occasionally bore the character of rivers (though of only short course), had embouchures opening to the sea or not.

In a geographical point of view, I would hope the result of my labours has not been either uninteresting, or incommensurate with the nature of the expedition placed under my command, and the character of the country I had to explore. By including in the summary I am now making, the journeys I undertook in 1839, as well as those of 1840-1 (for a considerable portion of the country then examined was recrossed by the Northern Expedition), it will be seen that I have discovered and examined a tract of country to the north of Adelaide, which was previously unknown, of about 270 miles in length, extending between the parallels of 33 degrees 40 minutes and 29 degrees S. lat.i.tude. In longitude, that part of my route which was before unknown, extends between the parallels of 138 degrees E., and 118 degrees 40 minutes E., or about 1060 miles of direct distance. These being connected with the previously known portions of South-western, South-eastern, and part of Southern Australia, complete the examination of the whole of the south line of the coast of this continent. Indeed, I have myself (at various times) crossed over the whole of this distance from east to west, from Sydney to Swan River. In the early part of the Expedition, 1840, the continuation of Flinders range, from Mount Arden, was traced and laid down to its termination, near the parallel of 29 degrees S. It was ascertained to be hemmed in by an impa.s.sable barrier, consisting of the basin of an immense lake, which I named Lake Torrens, and which, commencing from the head of Spencer's Gulf, increased in width as it swept to the north-west, but subsequently bent round again to the north-east, east and south-east, in correspondence with the trend of Flinders range, the northern extremity of which it completely surrounded in the form of a horse-shoe. The sh.o.r.es of this lake I visited to the westward of Flinders range, at three different points, from eighty to ninety miles apart from each other, and on all these occasions I found the basin to consist, as far as I could penetrate, of a ma.s.s of mud and sand, coated on the surface with a crust of salt, but having water mixed with it beneath. At the most north-westerly point attained by me, water was found in an arm of the main lake, about two feet deep, clear, and salt as the sea; it did not extend, however, more than two or three hundred yards, nor did it continue to the bed of the main lake, which appeared, from a rise that I ascended near the arm, to be of the same character and consistency as before. The whole course of the lake, to the farthest point visited by me, was bounded by a steep, continuous, sandy ridge, exactly like a sea-sh.o.r.e ridge; those parts of its course to the north, and to the east of Flinders range, which I did not go down to, were seen and laid down from various heights in that mountain chain. Altogether, the outline of this extraordinary feature, as thus observed and traced, could not have extended over a circuit of less than 400 miles.

It is singular enough that all the springs found near the termination of Flinders range should have been salt, and that these were very nearly in the same lat.i.tude in which Captain Sturt had found brine springs in the bed of the Darling in 1829, although our two positions were so far separated in longitude. My furthest position to the north-west was also in about the same lat.i.tude, as the most inland point gained by any previous exploring party, viz. that of Sir Thomas Mitch.e.l.l's in 1832, about the parallel of 149 degrees E. longitude; but by my being about 600 miles more to the westward, I was consequently much nearer to the centre of New Holland. It is, to say the least, remarkable that from both our positions, so far apart as they are, the country should present the same low and sterile aspect to the west and north-west. Since my return from the expedition, a party has been sent out under Captain Frome, the Surveyor-General, in South Australia, to examine the south-east extremity of Lake Torrens; the following is the report made by that officer upon his return.

"The most northern point at which I found water last year, was near the top of a deep ravine of the Black Rock Hills, in lat. 32 degrees 45 minutes 25 seconds, where I left the dray and the larger portion of my party on the 20th July, taking on only a light spring cart, the bottom filled entirely with kegs containing sufficient water for our horses for nearly three days, and provisions for one month, which was as much as the cart would contain.

"My object being to ascertain the boundaries of the southern termination of the eastern branch of Lake Torrens, as laid down by Mr. Eyre, and also the nature of the country between Flinders range, as high as the parallel of Mount Hopeless, and the meridian of 141 degrees, (the eastern limits of the province), I kept at first a course as near N.N.E. as the nature of the ground would admit, to ensure my not pa.s.sing to the east of this extremity of the lake; from whence I intended, if possible, to pursue a line nearly north-east, as far as my time and the means at my disposal would allow me, hoping to reach the high land laid down by Sir Thomas Mitch.e.l.l, on the right banks of the Darling, to the north of Mount Lyell, and thus ascertain if any reasonable hope existed of penetrating at some future time towards the interior from thence. The continued heavy rains which had fallen for more than three weeks before my departure from Adelaide, on the 8th July, and for nearly a fortnight afterwards, had left the surface water in pools on the scrubby plains, and in some of the ravines; but on proceeding north, it was evident that these rains had not been there so general or so heavy, though by steering from point to point of the hills, after crossing the Black Rock Range at Rowe's Creek, I was able to find sufficient water for the horses, and to replenish the kegs every second or third day. From this spot, the plains, as well as the higher land, appeared evidently to dip away to the north-east, the barren hills all diminishing in elevation, and the deep watercourses from Flinders range all crossing the plains in that direction. In one of these watercourses, the Siccus (lat. about 31 degrees 55 minutes), whose section nearly equals that of the Murray, there were indications of not very remote floods having risen to between twenty and thirty feet above its bed, plainly marked by large gum-trees lodged in the forks of the standing trees, and lying high up on its banks, on one of which I remarked dead leaves still on the branches; and in another creek (Pasmore River), lat. 31 degrees 29 minutes, a strong current was running at the spot where we struck it (owing, I suppose, to recent heavy rains among the hills from whence it has its source), but below this point the bed was like that of all the other creeks, as dry as if no rain had ever fallen, and with occasional patches of various shrubs, and salt water tea-tree growing in it. After crossing the low ridge above Prewitt's Springs, lat. 31 degrees 45 minutes, forming the left bank of the basin of the Siccus, the plain extended between the north and east as far as the eye could reach, and the lurid glare of the horizon, as we advanced northward, plainly indicated the approach of Lake Torrens, which, from the direction I had followed, I expected to turn about this point. I was obliged, however, to continue a northerly course for the sake of water, which I could only hope to find in the ravines of the hills on our left, as high as the parallel of 30 degrees 59 minutes, where the lake was visible within fifteen or sixteen miles, and appeared from the high land to be covered with water, studded with islands, and backed on the east by a bold rocky sh.o.r.e. These appearances were, however, all deceptive, being caused solely by the extraordinary refraction, as on riding to the spot the following day, not a drop of water was to be seen in any direction.

The islands turned out to be mere low sandy ridges, very scantily clothed with stunted scrub on their summits, and no distant land appeared any where between the north and south-east, though from the hills above our camp of the previous night, I could discern, with the aid of a very powerful telescope, a ridge of low land, either on the eastern side of the lake, or rising out of it, distant at least seventy miles, rendered visible at that distance by the excessive refractive power of the atmosphere on the horizon. A salt crust was seen at intervals on the surface of the sand at the margin of the lake, or as it might more properly be called, the Desert; but this appearance might either be caused by water brought down by the Siccus, and other large watercourses spreading over the saline soil in times of flood, or by rain, and appeared to me no proof of its ever being covered with water for any period of time. A few pieces of what appeared drift timber were also lying about its surface. The sand, as we advanced farther east, became more loose and drifting, and not a blade of gra.s.s, or any species of vegetation, was visible, rendering hopeless any attempt to cross it with horses. This point of the lake sh.o.r.e, being by Mr. Eyre's chart about thirty miles to the westward of where I found it, I thought it advisable to push further north, in the direction of the highest point of the range, which I imagined was probably his Mount Serle; for though it was not to be expected that Mr. Eyre, whose princ.i.p.al and almost sole object was to discover a road to the interior, would, at the same time, have been able to lay down the position of his route with the same accuracy that might have been expected from a surveyor; this difference of longitude prevented my being certain of the ident.i.ty of the spot, or that the range on our left, might not after all, be another long promontory running to the north, similar to that on the western side of which was Mr. Eyre's course. The appearance of the country, however, from the hills close under Mount Serle (for the perpendicular cliffs on the east side of this range of hills prevented my ascending to their summit without turning them among the ranges, for which I had not time), convinced me at once, from its perfect accordance with the description given by Mr. Eyre, that his eastern arm of Lake Torrens was the sandy desert I had left, its surface being about three hundred feet above the level of the sea; and our two converging lines having thus met at Mount Serle, I knew it was useless to advance further in the same direction to a spot which he had named, from the impossibility of proceeding beyond it, "Mount Hopeless."

"I was thus forced to return to Pasmore River, as the nearest point from whence I could cross to the low hills to the eastward, south of Lake Torrens; and from thence I sent back to the depot two men of the party, and three horses--the former for the sake of their rations, and the latter on account of the probable difficulty I should have in procuring water--taking on with me only Mr. Henderson and Mr. Hawker on foot, with the light cart and one policeman. The second evening I made the most northern of these hills, but could not find a drop of water in any of them; and having unluckily lost the policeman, who had crossed in front of the dray and got entangled in the dense scrub, I was detained three days riding upon his tracks, until I had traced them to our dray tracks from the depot at the Black Rock Hill, which he reached in safety, after being out five days without food. The cart, in the mean time, had been obliged to leave the spot where I left it, for want of water--having been out six days without obtaining any but what we carried in the kegs; and when I overtook it, we had not sufficient provisions for another attempt, the period of one month, for which they were intended to last, having already nearly expired.

"I very much regret not having been able to reach, at all events, within sight of Mount Lyell; but where I turned I could plainly see the whole country within fifty or sixty miles of the boundaries of the province, and can speak with almost as much confidence of its absolute sterility as if I had actually ridden over it. It would certainly be possible in the wet season to take a small party from Prewitt's Springs across to this hill of Sir Thomas Mitch.e.l.l (distant about one hundred and sixty miles), by carrying on water for eight or ten days; but no further supply might be found short of the Darling (eighty miles beyond Mount Lyell), on which river it would be madness to attempt anything without a considerable force, on account of the natives; and the same point might be reached in nearly as short a time, and with much more certainty, with any number of men that might be considered necessary, by ascending the Murray as high as the Laidley Ponds, and proceeding north from thence.

"On returning to the depot, I moved the party down to Mount Bryan, and made another attempt on the 25th August, with Mr. Henderson, and one man leading a pack-horse, to the north-east, hoping, from the heavy rains which had fallen during the past two months, to find sufficient water in the ravines to enable me to push on for several days. The second day, I crossed the high range I had observed from the Black Rock Hills and Mount Bryan, for the southern termination of which Colonel Gawler steered when he left the northern bend of the Murray in December, 1839; but though these hills had an elevation of twelve hundred or fourteen hundred feet above the plain, there was no indication of rain having fallen there since the deluge. This want of water prevented my proceeding further to the north-east; but from the summit of the highest of these hills (Mount Porcupine,) I had a clear view of the horizon in every direction, and a more barren, sterile country, cannot be imagined.

"The direction of the dividing ridge between the basin of the Murray and the interior desert plain was generally about north-east from the Black Rock Hills (the highest point north of Mount Bryan,) gradually decreasing in elevation, and, if possible, increasing in barrenness. The summits of those hills I found invariably rock--generally sandstone--the lower slopes covered with dense brush, and the valleys with low scrub, with occasional small patches of thin wiry gra.s.s. I was obliged to return on the third day, and reached the foot of Mount Bryan on the fourth evening, at the southern extremity of which hill the horses were nearly bogged in the soft ground, though only fifty miles distant from land where the dust was flying as if in the midst of summer.

"It appears to me certain, from the result of these different attempts, that there is no country eastward of the high land extending north from Mount Bryan, as far as Mount Hopeless, a distance of about three hundred miles, as far as the meridian of 141 degrees (and probably much beyond it), available for either agricultural or pastoral purposes; and that, though there may be occasional spots of good land at the base of the main range on the sources of the numerous creeks flowing from thence towards the inland desert, these must be too limited in extent to be of any present value.

"The nature of the formation of the main range I found generally iron-stone, conglomerate and quartz, with sandstone and slate at the lower elevation. At the points of highest elevation from Mount Bryan northward, igneous rocks of basaltic character protruded from below, forming rugged and fantastic outlines.

"At one spot, particularly, about 30 degrees, there were marked indications of volcanic action, and several hollows resembling small craters of extinct volcanoes, near one of which we found a small spring of water, maintaining always a temperature of about 76 degrees Farenheit, when the thermometer standing in water in the kegs stood at 52 degrees, and in the atmosphere at 54 degrees.

"The accompanying sketch of the country from Mount Bryan northwards, will probably explain its character better than any written description. The alt.i.tudes marked at the different spots where they were observed, were obtained by the temperature of boiling water, as observed by two thermometers; but as they were not graduated with sufficient minuteness for such purposes, the results can only be considered approximate."

E. C. FROME, Capt. Royal Engineers, Surveyor-General.

September 14th, 1843.

In the above report it will be observed, that there are some apparent discrepancies between my account and Captain Frome's. First, with respect to the position of the south-east extremity of Lake Torrens. Captain Frome states that he found that point thirty miles more to the east than I had placed it in my chart. Now the only sketch of my course under Flinders range, and that a rough one, which I furnished to the Colonial Government, was sent from Port Lincoln, and is the same which was subsequently published with other papers, relative to South Australia, for the House of Commons, in 1843. This sketch was put together hastily for his Excellency the Governor, that I might not lose the opportunity of forwarding it when I sent from Port Lincoln to Adelaide for supplies early in October, 1840. It was constructed entirely, after I found myself compelled to return from the northern interior, and could only be attended to, in a hurried and imperfect manner, during the brief intervals I could s.n.a.t.c.h from other duties, whilst travelling back from the north to Port Lincoln (nearly 400 miles,) during which time my movements were very rapid, and many arrangements, consequent upon dividing my party at Baxter's range, had to be attended to; added to this were the difficulties and embarra.s.sments of conducting myself one division of the party to Port Lincoln, through 200 miles of a desert country which had never been explored before, and which, from its arid and sterile character, presented impediments of no ordinary kind.

Upon my return to Adelaide in 1841, after the Expedition had terminated, other duties engrossed my time, and it was only after the publication of Captain Frome's report, that my attention was again called to the subject. Upon comparing my notes and bearings with the original sketch I had made, I found that in the hurry and confusion of preparing it, whilst travelling, I had laid down all the bearings and courses magnetic, without allowing for the variation; nor can this error, perhaps, be wondered at, considering the circ.u.mstances under which the sketch was constructed.

At Mount Hopeless the variation was 4 degrees E., at Mount Arden it was 7 degrees 24 minutes E. Now if this variation be applied proportionably to all the courses and bearings as marked down in the original chart, commencing from Mount Arden, it will be found that Mount Serle will be brought by my map very nearly in longitude to where Captain Frome places it. [Note 30 at end of para.] Our lat.i.tudes appear to agree exactly.

The second point upon which some difference appears to exist between Captain Frome's report and mine is the character of Lake Torrens itself, which Captain Frome thought might more properly be called a desert. This, it will be observed, is with reference to its south-east extremity--a point I never visited, and which I only saw once from Mount Serle; a point, too, which from the view I then had of it, distant although it was, even at that time seemed to me to be "apparently dry," and is marked as such in Arrowsmith's chart, published from the sketch alluded to.

[Note 30: This has been done by Arrowsmith in the map which accompanies these volumes;--to which Mr. Arrowsmith has also added Captain Frome's route from the original tracings.]

There is, however, a still greater, and more singular difference alluded to in Captain Frome's report, which it is necessary to remark; I mean that of the elevation of the country. On the west side of Flinders range, for 200 miles that I traced the course of Lake Torrens, it was, as I have observed, girded in its whole course by a steep ridge, like a sea-sh.o.r.e, from which you descended into a basin, certainly not above the level of the sea, possibly even below it (I had no instruments with me to enable me to ascertain this,) the whole bed consisted of mud and water, and I found it impossible to advance far into it from its boggy nature. On the east side of Flinders range, Captain Frome found the lake a desert, 300 feet above the level of the sea, [Note 31: By alt.i.tude deduced from the temperature of boiling water.] and consisting of "loose and drifting sand," and "low sandy ridges, very scantily clothed with stunted scrub on their summits." Now, by referring to Captain Frome's chart and report, it appears that the place thus described was nearly thirty miles south of Mount Serle, and consequently twenty miles south of that part of the bed of Lake Torrens which I had seen from that hill. It is further evident, that Captain Frome had not reached the basin of Lake Torrens, and I cannot help thinking, that if he had gone further to the north-east, he would have come to nearly the same level that I had been at on the western side of the hills. There are several reasons for arriving at this conclusion. First, the manner in which the drainage is thrown off from the east side of Flinders range, and the direction which the watercourses take to the north-east or north; secondly, because an apparent connection was traceable in the course of the lake, from the heights in Flinders range, nearly all the way round it; thirdly, because the loose sands and low sandy ridges crowned with scrub, described by Captain Frome, were very similar to what I met with near Lake Torrens in the west side, before I reached its basin.