THe gg 
ANNUAL OF SCIENTIFIC DISCOVERY: 
10% te 
YEAR BOOK OF FACTS, IN SCIENCE AND ART. 
g the most important ped se nist ments in Mechanics and Use- 
a3 red cane sai: ophy, Chemistry, tae my, Meteorology, Seilngs: Bot- 
any, Mineralogy, Geo logy, G eography, Anti sjuittas ¥e., together with a list of 
Obituaries of Eminent 
Recent Scienti; ¢ Publicatio s: a classified list of Patents ; 
Scientific Men; An Index “i important Papers in Scientific Journals, Reports, &¢. 
DITED BY 
DAVID A. WELLS, 
OF THE LAWRENCE SCIENTIFIC SCHOOL, CAMBRIDGE, AND 
ae GEORGE BLISS, Jr. 
as es wine’ i designed for all those who desire to keep pace Hore ve advance+ 
of Science and Art. The great and daily increasing num «Chg pc eden 
ia "she different oars i science is such, and the annou meal f them 
wate of th he year, arran ed, so as to present By one gia all the new 
discoveries and i impro oved Lise ses of the ae: year, tus 
ilors are so eae as to have acce 
America, Gre itain, France, and Germany; a e also ved, for the 
nt volume, the approbation as wel! as the counsel er er, consribitiedis 
of many of the ablest scientific men in this country, e Profe 
A HorsF and Wyman, of Harvard University, and they have the 
promise in future, from many scientific gentlemen, of articles not published pre- 
viously elsewhere. They have also taken coat pains to render the general index 
to the w os work a 5 full’ and correct as poss 
It he hus be seen, that the plan of the. C cA nhbiths OF eerie Discov- 
ume of this valuable publication must make an early Sepia 
of ONE poLuarR, the publishers will forward a copy in paper covers, by: Mel 
T PAID. 
Will be ready, March first, 
LAKE SUPERIOR, 
ITS PHYSICAL CHARACTER, VEGETATION AND ANIMALS, COMPARED WITH 
E OF OTHER AND SIMILAR REGIONS 
By L. AGASSIZ. 
Contai Dr. Joun L. LeConre, Jr., Dr. Gouri, Dr. Har 
af phan ba a Latah 4 pikes of the pares SA and inkivatlond, by 
ABOT. : , 
b H in the course of publication, will A one of 
wa ire ror wd ey ra a rpin heey tao orld. bs vers form a handsome octavo 
illustrated w te drawin agra na 
— om, “GOULD, D. KEN DA LL & LINCOLN, PUBLIGRERS, Bostor. 
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