BY E. L. YOUMANS.

12mo. 340 pages. Price 75 cents.

Every page of this book bears evidence of the author's superior ability

of perfectly conforming his style to the capacity of youth. This is a

merit rarely possessed by the authors of scientific school-books, and

will be appreciated by every discriminating teacher. While Chemistry is

almost universally regarded by students as a dry and repulsive study

(owing to the rigid and technical manner in which it is presented), Mr.

Youmans' work will be found pre-eminent in clearness and simplicity

of diction, by which the subject is made at once interesting and

attractive. It is especially commended by the eminently practical

manner in which each subject is presented. Its illustrations are drawn

largely from the phenomena of daily experience, and the interest of the

pupil is speedily awakened by the consideration that Chemistry is not a

matter belonging exclusively to physicians and professors.

_From_ PROF. WM. H. BIGELOW.

The eminently practical character of the Class-book, treating of

the familiar applications of the science, is, in my opinion, its

chief excellence, and gives it a value far superior to any other

work now before the public.

_From_ DAVID SYME, A. M., _formerly Principal of the Math. Dept. and

Lecturer in Nat. Philosophy, Chemistry, and Physiology, in Columbia

College_.

MR. YOUMANS: Dear Sir,--I have carefully examined your Class-Book

on Chemistry, and, in my opinion, it is better adapted for use in

schools and academies than any other work on the subject that has

fallen under my observation.

I hope that the success of your Class-Book will be proportionate

to its merits, and that your efforts to diffuse the knowledge of

Chemistry will be duly appreciated by the friends of education.

_From_ PROF. J. MULLIGAN, _Principal of Young Ladies' School, New York_.

We have a large number of school-books for the purpose of giving

elementary instruction in Chemistry--possessing various kinds and

various degrees of merit; but of all which I have examined, I

should prefer the Class-Book of Chemistry, as the most perspicuous

in style and method, and as containing the happiest selection of

what is most interesting, and most practically valuable in the vast

field of chemical science.

_From the N. Y. Commercial Advertiser._

Either for schools or for general reading, we know of no elementary

work on Chemistry which in every respect pleases us so much as this.

_From the Scientific American._

Such a book, in the present state of chemical science, was

demanded; but to present the subject in such a clear, comprehensive

manner, in a work of the size before us, is more than we expected.

The author has happily succeeded in clothing his ideas in plain

language--true eloquence--so as to render the subject both

interesting and easily comprehended. The number of men who can

write on science and write clearly, is small; but our author is

among that number.

Chemical Chart:

Great Facts A Popular History and Description of the Most Remarkable Inventions During the Present Century · 第 33 / 39 题