NATURAL SCIENCE.

FIRST LESSONS IN NATURAL HISTORY AND LANGUAGE. Entertaining and Instructive Lessons in Natural History and Language for Primary and Grammar Schools. 12mo, Cloth, 35 cents.

THE CHILD'S BOOK OF NATURE. The Child's Book of Nature, for the Use of Families and Schools: intended to aid Mothers and Teachers in Training Children in the Observation of Nature. In Three Parts. Part I. Plants.

Part II. Animals. Part III. Air, Water, Heat, Light, &c. By WORTHINGTON HOOKER, M.D. Ill.u.s.trated. The Three Parts complete in One Volume, Small 4to, Half Leather, $1.12; or, separately, in Cloth, Part I., 45 cents; Part II., 48 cents; Part III., 48 cents.

HOOKER'S FIRST BOOK IN CHEMISTRY. A First Book in Chemistry. By WORTHINGTON HOOKER, M.D. Ill'd. Revised. Square 4to, Cloth, 48 cts.

FARADAY'S CHEMISTRY OF A CANDLE. Chemistry of a Candle. A Course of Six Lectures on the Chemical History of a Candle, to which is added a Lecture on Platinum. By M. FARADAY. Edited by W. CROOKES. Ill.u.s.trated.

16mo, Cloth, $1.00.

FARADAY'S PHYSICAL FORCES. Physical Forces. A Course of Six Lectures on the Various Forces of Matter, and their Relations to Each Other. By M.

Faraday. Edited by W. CROOKES. Ill.u.s.trated, l6mo, Cloth, $1.00.

FRENCH AND GERMAN.

FRENCH PRINCIPIA, PART I. A First French Course: containing Grammar, Delectus, and Exercise-Book, with Vocabularies. On the Plan of Dr.

Smith's _Principia Latina_. 12mo, Cloth, 50 cents.

FRENCH PRINCIPIA, PART II. A First French Reading-Book. Containing Fables, Anecdotes, Inventions, Discoveries, Natural History, and French History. With Grammatical Questions, Notes, and a Copious Etymological Dictionary. On the Plan of Dr. Smith's _Principia Latina_. 12mo, Cloth, 80 cents.

GERMAN PRINCIPIA, PART I. A First German Course. Containing Grammar, Delectus, Exercise-Book, and Vocabularies. On the Plan of Dr. Smith's _Principia Latina_. 12mo, Cloth, 50 cents.

GERMAN PRINCIPIA, PART II. A First German Reading-Book. Containing Fables, Anecdotes, Natural History, German History, and a Comedy. With Grammatical Questions, Notes, and a Dictionary. On the Plan of Dr.

Smith's _Principia Latina_. 12mo, Cloth, 80 cents.

COMFORT'S GERMAN PRIMER. A German Primer. By GEORGE F. COMFORT, A.M.

12mo, Half Leather, 50 cents.

COMFORT'S FIRST BOOK IN GERMAN. A First Book in German. By GEORGE F.

COMFORT, A.M. 12mo, Half Leather, 60 cents.

COMFORT'S FIRST GERMAN READER. The First German Reader: to succeed the "First Book in German." By GEORGE F. COMFORT, A.M. 12mo, Cloth, 50 cents.

OBJECT LESSONS.

WILLSON'S MANUAL OF OBJECT LESSONS. A Manual of Information and Suggestions for Object Lessons, in a Course of Elementary Instruction.

By MARCIUS WILLSON. 12mo, Cloth, $1.00.

CALKINS'S PRIMARY OBJECT LESSONS. Primary Object Lessons, for Training the Senses and Developing the Faculties of Children. A Manual of Elementary Instruction for Parents and Teachers. By N. A. CALKINS.

Fifteenth Edition. Rewritten and Enlarged. 12mo, Cloth, $1.00.

Published by HARPER & BROTHERS, New York.

_Sent by mail, postage prepaid, to any part of the United States, on receipt of the price._

A LATIN WORD SQUARE.

BY H.

My first was highly prized of old; They thought the future it foretold, And nothing did without it; But now we listen with a smile When once 'tis mentioned in a while, And hardly think about it.

My second has no proper hue, Though white, red, yellow, black, and blue, 'Tis called by one or t'other.

We pa.s.s it over night and day, And yet when man becomes its prey They swallow each the other.

My second backward spells my third, And shows what magic's in a word.

It makes a part of being.

'Tis singular, and yet 'tis true, Imperfect as it is, to you It shows how time is fleeing.

Now take my first, reverse its spell, 'Twill make my fourth; and _he_, note well, Could solve the problems mighty-- To square the circle, change to gold, Perpetual motion to unfold, And make elixir vitae.

THE MISSING LINK PUZZLE.

[Ill.u.s.tration]

Put on your thinking cap, and see if you can not find out the true inwardness of these sausages.

THE GAME OF GEOGRAPHY.

AS ARRANGED BY G. B. BARTLETT.

This play, although instructive, can not fail to be amusing, as the best scholars can hardly help making blunders in the excitement and hurry of the game. Two leaders are chosen, who each select in turn, until all the players are taken, and are formed in two lines facing each other, a chair for each being placed behind him. The leader on one side calls out some letter, and says "Sea," or mentions some other body of water. The leader on the other side immediately names one beginning with the letter, and each one on his side gives another in rapid succession. If there is a pause, the leader of side No. 1 counts ten rapidly, and calls "Next"; the player who stands next answers, and the one who missed takes his seat. If a mistake is made by giving a wrong name to the piece of water called for, as by calling a river by the name of a sea or isthmus, or by giving the wrong letter as its first one, and it is not corrected by some member of the same side before the leader of the opposite side calls out "Miss," then all of side No. 2 must take their seats, which counts two for side No. 1.

The leader of side No. 2 requests all his side to again stand in line, with the exception of those who missed, and calls out some piece of land, as mountain, State, county, etc., and a letter, which the opposite side answer in the same way; and if every one succeeds in answering to the call, and each one gives a correct reply without mistake, they score three for their own side. The game is won by the side that first scores ten; and as all who have missed must keep their seats until the end of the play, they have abundant opportunity for laughing at the mistakes which are made by their friends. If it should happen that the leader of one side has no one to call upon to stand in line, he is obliged to answer alone; and if he also fails, the victory belongs to the other, even if they have not scored ten.

Another game of geography is played by each person taking pencil and paper, and in a given time--say, five minutes--writing as many geographical names, beginning with a certain letter, as he can remember.

When "Time" is called, a player reads his list, and any name that he has, and the others have not, counts as many for him as there are players besides himself. Each then reads his list in turn, and the one who scores the greatest number, when all have read, wins the game. If during the reading any name is challenged, and the writer is unable to describe it, if it be a river, sea, bay, etc., or locate it if it is a city, town, or cape, every other player counts one.

[Ill.u.s.tration: BESIEGED.]