GEOMETRY AND SCIENCE OF FORM.

AN INTRODUCTION TO GEOMETRY AND THE SCIENCE OF FORM. Prepared from the most approved Prussian Text-Books. 12mo. pp. 180. 160 Figures, 83 cents.

"I have carefully examined the ma.n.u.script of 'An Introduction to Geometry,' and think it admirably adapted to supply an important want in education.

It is not a mere geometrical logic, but a natural and simple introduction to the Science of Form."

BENJAMIN PEIRCE,

_Perkins Professor of Astronomy and Mathematics in Harvard University._

GEOMETRICAL BLOCKS.

GEOMETRICAL BLOCKS, designed to accompany The Introduction to Geometry.

In case. $2.00.

PEIRCE'S ALGEBRA.

An ELEMENTARY TREATISE ON ALGEBRA, To which are added Exponential Equations and Logarithms. By Benjamin Peirce, A. M., Perkins Professor of Astronomy and Mathematics in Harvard University. 12mo. Seventh Edition. 83 cents.

PEIRCE'S GEOMETRY.

AN ELEMENTARY TREATISE ON PLANE AND SOLID GEOMETRY. New Edition. 12mo.

184 Figures. 83 cents.

PEIRCE'S TRIGONOMETRY. AN ELEMENTARY TREATISE ON PLANE AND SPHERICAL TRIGONOMETRY, with their Applications to Navigation, Surveying, Heights, and Distances, and Spherical Astronomy, and particularly adapted to explaining the Construction of Bowditch's Navigator, and the Nautical Almanac. New Edition, revised, with Additions. 8vo. Plates. $1.75.

PEIRCE'S CURVES AND FUNCTIONS.

AN ELEMENTARY TREATISE ON CURVES, FUNCTIONS, AND FORCES. Volume First, containing a.n.a.lytic Geometry and the Differential Calculus. Volume Second, containing Calculus of Imaginary Quant.i.ties, Residual Calculus, and Integral Calculus. Second Edition. 2 vols. 12mo. Plates. $2.50.

WHATELY'S ENGLISH SYNONYMS.

A SELECTION OF ENGLISH SYNONYMS. First American, from the Second London Edition. Revised and enlarged. 12mo. pp. 180. 63 cents.

"For a clear and full understanding of the force and meaning of these, the reader will find here great a.s.sistance."--_Merchants' Magazine._

"It will be welcome to the lovers of nice philological distinctions. As a whole, they are marked by good sense, as well as by critical ac.u.men; and rich as they are in suggestions, even to the most accomplished word-fancier, they cannot be studied without advantage."--_Harper's Magazine._

"It is marked by that strong common-sense and accurate learning which have rendered the author's educational treatises so indispensable to all professional teachers. We know of no work on synonyms that is equal in value to this."--_New York Recorder._

WHATELY'S ELEMENTS OF LOGIC.

ELEMENTS OF LOGIC, comprising the Substance of the Article in the Encyclopaedia Metropolitana, with Additions, &c. By Richard Whately, D.

D., Archbishop of Dublin. New revised Edition, with the Author's last Additions. Large 12mo. pp. 484. Cloth stamped. $1.00.

"This work (Elements of Logic) has long been our text-book here. The style in which you have published this new edition of so valuable a work leaves nothing to be desired in regard of elegance and convenience."--PROFESSOR DUNN, _Brown University._

"Its merits are now too widely known to require an enumeration of them. The present American edition of it is conformed to the ninth English edition, which was revised by the author, and which contains several improvements on the former issues."--_North American Review._

"This elementary treatise holds a very high rank among the educational works of the day, having been introduced into most of the best managed and popular seminaries of learning, both in England and the United States. It is got up in correct and beautiful style."--_Merchants' Magazine._

"From stereotype plates, and the new ninth edition revised by its author, have just been published, in a fairer and handsomer style, than the English copy, Archbishop Whately's Elements of Logic, which, like the 'Rhetoric' by the same prelate, has taken its place as a standard work, and is too generally known and used to need special notice."--_Christian Inquirer._

WHATELY'S ELEMENTS OF RHETORIC.

ELEMENTS OF RHETORIC: comprising an a.n.a.lysis of the Laws of Moral Evidence and of Persuasion, with Rules for Argumentative Composition and Elocution. New Edition, revised by the Author. Large 12mo. pp. 546.

$1.00.

"The Elements of Rhetoric has become so much a standard work that it might seem superfluous to speak of it. In short, we should not dream of teaching a college cla.s.s from any other book on Rhetoric. Communion with Whately's mind would improve any mind on earth."--_Presbyterian Quarterly Review._

QUESTIONS TO WHATELY'S RHETORIC.

QUESTIONS ADAPTED TO WHATELY'S ELEMENTS OF RHETORIC, for the Use of Schools and Colleges; prepared by a Teacher. 12mo. 15 cents.

QUESTIONS TO WHATELY'S LOGIC.

QUESTIONS ADAPTED TO WHATELY'S ELEMENTS OF LOGIC, for the Use of Schools and Colleges; prepared by a Teacher. 12mo. 15 cents.

WHATELY'S LESSONS ON REASONING.

EASY LESSONS ON REASONING. By Richard Whately, D. D. Fourth Edition, from the Fifth London Edition. 12mo. pp. 180. 63 cents.

"It is an admirably clear and simple introduction to Dr. Whately's 'Elements of Logic,' being designed, apparently, to facilitate the use of that work in academies and high schools."--_North American Review._