* 150 Bibliography. :. 
so by the pecreitenes of the Gulf a. pet Polar cieretgng in this 
ocean. Navigation also, as well as science will greatly profit from 
these investigations, and already both Eepartisents have derived much. 
that i _ new and important. Science looks shart to still more stri- 
a 
pars Dbtaah the number of facts already alictead, Took upon his 
labors as far from completed. We wish him the continued aid and 
encouragement of a feeling assured that expense is ‘ge in 
such investigation : 
3. Shells of New England: a revision of the Syiidayniy of the 
Moa ewe Molla s of New ngland, with notes on their structure 
sides showing that some supposed new species have earlier names: and 
the work of Mr. Stimpson will therefore be found valuable in a 
senting the existing state of the science, especially as regards ew 
ngland species. It has additional value from the note s and obse 
tions of the author on many species, his suggestions in classification, 
and his descriptions and figures of new es. 
: e Candolle, sa Vie et ses Trauvaux r A. vE LA Rive. 
& 312 pp., Sines Paris and Genéve, 1851. Joél Oterbuliex. cP De 
la Rive, the author of this Life of De Candolle, was intimately 9 
quainted with the illustrious botanist, and entered upon his task, as he 
states, from his affection and respect fo for him. Himself a phil a 
of high merit, he could well appreciate the mind and character 0 th 
’ ilosopher whom he would commemorate. The work commence 
with a chapter on the earlier years of his life; and then takes up is 
residence from 1798 to 1808 at Paris, from 1808 to 1816 at Monipelih 
eva. The ick aad closes with a 
his work, which is calculated to do much fo or the dissemination “o 
knowledge, speaking as it does by full illustrations as well as by de- 
scription, has reached its close. It — in all four thick volumes 
_ of text, in 8vo, and is a with 500 4to steel plates, contaia 
ing upwards of signe a 
ake gat sacs by the ai or Olga 34 pp. Sve. Pa 
wha; 1603.58 Weak OF sneee importane “Engineer thod of 
othetaing the cubic contents ot excayati ots om Me Tiserams, instead 
of the a tedious one in use by calculati ‘8 ob 
Aguy Reotsrer from 1831 to ed from 
servations mada y the officers of the Medical de 1842 inclu se ye pay at the Mili- 
sts of the United States. Prepared under K tagcat of Brevet Brig. Gener 
pirate = ir Washi . pt ai “— 
rvations here published were made, ar 
ons about which - 
= of spe tere a ut which little is known in meteorological way, this ot is 
rm 
logy of the cera Men aes od Dege aeeagial London, 4 
