eae ce ee ee Se ee 
CONTENTS. rit 
XXXIV. On the Passivity of Nickel and Cobalt; by M. J. Nicxzs, ‘347 
XXXV. Method of taking Daguerreotype Pictures for the Stereo- 
scope, simultaneously, upon the same pee with an ORI, 
Camera; by Prof. F. A. P. Barnarp, 348 
XXXVI. Theoretic yaaa of the 'Expenditare of Heat 
in the Hot-air Eng reer saith by Prof. 
Freperick A. P. ene 351 
XXXVII. On the Deiaetdation of Coral Formations; by ‘Saieos 
‘D. Dana, 357 
XXXVI. Resanihtnaiion of Awehton Mineral: Part Hi—Dian. 
burite ; Carrollite ; Thalite ; Hudsonite ; Jenkinsite.; ; Lazu- 
lite; Kyanite ; Elzeolite ; Spodumene ; Petalite: by J. Law- 
RENCE Situ and GeorceE J. Brusu, Ph.B., 365 
XXXIX. 1. Rano of Nitric Acid on the Chlorids of Potessisiit 
and Sodium.—2. Action of Oxalic ene . the Nitrates and 
Chlorids of the Pee with a ready method of converting 
them into the Carbona he ais of Oxalic Acid 
enabling Zine to decompose Water; by Prof. J. Lawrence 
Situ, M.D., 373 
XL. On the Blood. pia Kolding Cells, and thelr relation to 
. l. Burnett, M.D., 375 
XLI. Extraordinary Fishes from California, constituting a new 
amil cB rorceabogs by L. Acassiz, 
XLII. On nge of Ocean Temperature that would attend a 
change i in one mae of the African and South American Con- 
tinents; by James D. Dana, 391 
XLIII. Reviews and Raconde in Anatomy sing Physiology ; by 
Watpo I. Burnett 393 
ie gpa ome of M. J. Nroxiaa, Reproduction at Cot 
on fr yroxyline: Phenomena of Con 
monia in Rain-water: Bronze for the heading of Ships : 
Pnoaee ys: Other papers read before the Academy, a 
—-Galva : Machine with Vapor of Ether, 408.—Loc 
motion “ik the Vapor of Chloroform, 409. sie 
rizes Proposed, 410. 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics.—New Bases containing Palladium, 410.— Anthranilic and Benzoic 
Acids : New Compounds of Iridium: On Zirconia, 412. —On Did ymium, 413.—Regen- 
eration of Hippuric Acid: On the Alkaloids of the Quinquinas, 4 ransformation 
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and Paleontology. eit = Vuikanischen Gesteine Be a und Island, 
und ihre submarine Umbildun n W. Sartorius ing Wa HAUSEN, 418. 8.—List 
on Geology and Palooussiony, 419, 420—On the Pugtuction n oO! 
British Islands, by fore VERT, 420.—Reports of Profe ice Henry D. Rogers,on Wheat- 
ley, , Brookdale and Charleston Mines, Phenixville, Chester Co., Pennsylvania, 422, 
Botany.—Harvey : Nereis Boreali-Americana; or insta en toa deb rsige: so the vot 
Alge of North America, 422.—Plante Fr emontianee ; 
