: > 
vi CONTENTS. a 
SCIENTIFIC INTELLIGENCE, . 
Chemistry and Physics.—Researches on indices of refraction, 265.—On the density of the 
vapor of certain bodies, 266.—Memvir on the equivalents of the elements, 267—On 
new compounds of Siieak. 270.—New researches on Boron, 27).—On the Mages In- 
duction of Crystals, by Professor Junius PLicKer, 272. 
logy.—Quarterly Journal of the Geological ER eh 274.~ Annual il of the 
Geological partly as the —e of Wisconsin, by Epwarp Daniets: On the Newer 
Pliocene a rst its of the vicinity of Smears _by J. W. Dawson, LL.D, 
275. ee of Ne ‘ew York, “O77, —On the Cervus eury: “erds, by Prof. Dk Morxot, 
279.—Former connéction of Anstralia, New Gilinen and the Aru Islands: Earthquake 
in Italy, 282.—Grenelle Artesian well: Chemische und Chemiseh Technische Unters 
: ll 
age eB i 
hant: Secoud Report on the Geological Survey of Kentncky. by Davip Dae OWEN, 
Rogret Peter and Sipney S. Leen aah ee Species of Fosril Plants from ” 
Coal-fields of erin; by Leo Lrsquereux: IMlinvis Geological Survey, , 
J. G. Norwoon, M_D., wiigag ct aivatt jee a “ater: hen Akademie der Wissen- 
schaften Mathematisch Classe: On the part which the Silieates 
of the Alkalies may play in the Metamorghirm of Rocks, by T. Steany Hunt, 287— 
On the Extinct Volcanoes of Vict toria, Australia, by R. Beoucn Suytn, Esq, " 289— 
On the occurrence of Marine Animal — artes water: Wollaston Medal, 1, 290, 
Bitany and Zoology--LeC: ndoMe's Predromus, 2£0.--Dr. Hooker's Flora of Tas 
Journal of the Proceedings of the Linnean erie --Flanie Indie Batavie O 
—_ bony st rerplogasit sil G.C. sh pt: Lotanical Necrology for 1857, 293. 
lled ys slers, by W.J. Taytor; Iumming 
of the U, States, 294,— xk besiege: 295, 
Astronomy.— Note on the Feriadicity in the Sun’s Spots, by O. Reicnenzacn, 295. 
aaean ca bate i Intdhge pater 257 odeeuee into the wg 
of i throughout the Day and Night, ete., by Epw Smit, 
i aiicace : A System of Cccasisi in. the Rieu al Use nn the Blo ilies ee 
Lectures on Roman Husbandry: Medical Texi¢on; A Dictionary of Medical Sei- 
ence, at opert Duxesison. M.D., LL.D. : Cormos, 202 —Graham's Chemistry + 
E K. Kane, by Dr. Wm Exper: Next Meeting of the. American Associa- 
e Advancement of Science, 3C3.--New Lublications, 304. 
NUMBER LXXKYV. 
Art. XXVII. Geographical Notices. No.1, - ‘ 
XXVIII. Agassiz’s Contributions to the Natural Hivory ar the 
United States; J.D. Dana, - ; 
XXIX. Recapitulation of the * Ee of the ‘Turlle,” as 
given in Professor Agassiz’s **Contributions to the Natural 
History of the United States of North nd mariana, by 
H. James Cuarg, - — - . . 
