WILL PUBLISH EARLY IN MARCH,

THE ANNUAL OF SCIENTIFIC DISCOVERY:

OR

YEAR BOOK OF FACTS IN SCIENCE AND ART; Exhibiting the most important discoveries and improvements in Mechanics and the Useful Arts; Natural Philosophy, - Chemistry, Astronomy, - Meterology, - Zoology, Botany, Mineralogy-Geology,- Geography, Antiquities, &c. &c. Together with a List of Recent Scientific Publications;-A Classified list of Patents; Obituaries of Eminent Scientific Men; An Index of important papers in Scientific Journals, Reports, &c.

EDITED BY

DAVID A. WELLS,

OF THE LAWRENCE SCIENTIFIC SCHOOL, CAMBRIDGE; AND
GEORGE BLISS, JR.

This work is designed for all those who desire to keep pace with the advance of Science and Art. The great and daily increasing number of discoveries in the different departments of science is such, and the announcement of them is scattered through such a multitude of secular and scientific publications, that it is very difficult for any one to obtain a satisfactory survey of them, even had he access to all these publications. Scientific Journals, especially those of Europe, besides being many of them in foreign languages, have a very limited circulation in this country, and are accessible to but very few. It is evident, therefore, that an annual publication, giving a complete and condensed view of the Progress of Discovery in every branch of Science and Art; being, in fact, THE SPIRIT of the SCIENTIFIC JOURNALS of the year, systematically arranged, so as to present at one view, all the new discoveries, and improved processes of the past year, must be an acceptable volume to every one, and greatly facilitate the diffusion of useful knowledge.

The Editors are so situated as to have access to all the scientific publications of America, Great Britain, France, and Germany; and have also received for the present volume, the approbation as well as the counsel and personal contributions of many of the most scientific men in this country, among whom are Professors AGASSIZ, HORSFORD, and WYMAN, of Harvard University, and they have the promise in future from many scientific gentlemen, of articles, not published previously elsewhere.

The work in paper covers, will be sent by mail, free of postage, on the receipt of one dollar.

LAKE SUPERIOR:

ITS PHYSICAL CHARACTER, VEGETATION, AND ANIMALS, COMPARED WITH THOSE OF OTHER AND SIMILAR REGIONS.

BY PROF. LOUIS AGASSIZ.

Containing contributions by Dr. JOHN L. LE CONTE, Dr. A. A. GOULD, T. M. HARRIS, J. E. CABOT, and others, with a Journal and Illustrations, by J. E. CABOT, Esq.

This work has so far progressed that we confidently expect its completion in the month of March. It will be beautifully illustrated with seventeen Plates in Natural History and Lake Scenery, executed in Sonrel's best style of the art.

I. THE PRE-ADAMITE EARTH; second thousand, price 85 cts.

II. MAN PRIMEVAL: or the Constitution and Primitive Condition of the Human Being; with a finely engraved portrait of the author. 12mo, cloth. Second thousand. $1.25.

THE EARTH AND MAN.

Lectures on Comparative Physical Geography, in its relation to the History of Mankind. By ARNOLD GUYOT. Translated from the French by Prof. C. C. FELTON; with

Illustrations. 12mo. Price $1.25.

"The work is one of high merit, exhibiting a wide range of knowledge, great research, and philosophical spirit of investigation. Its perusal will well repay the most learned in such subjects, and give new views to all, of man's relation to the globe he inhabits."—Silliman's Journal.