CONTENTS. Vii 
XLI. On a Process of Fractional Condensation ; applicable to the 
Separation of Bodies having small differences between their 
Boiling-points; by C. M. Warren, 327 
XLU. Examination of Petroleum from California ; by B. Nea ee 341 
SCIENTIFIC INTELLIGENCE. 
Physics and Chemistry.—On the determination of lime, Frrrzscne: On the sulphur com- 
pounds of gta REeMELE: Note on the canenatee. gas-furnaces of the brothers 
Siemens, 344.—On some aluminum compounds, Buck ron and Opxine, 345.—On the 
density of the vapor ae salammoniac, H. St. Laing Devitie, 346.—On the dispersion 
: O 
n ar N 
combustion by invisible rays, —On the Electrical properties of Pyroxiline-paper 
and Gun-cotton, by Prof. J. Jounston, 348, 
Mineralogy and Geology.—On ‘Tin Ore at Durango in Mexico, by Prof. C. F. CHANDLER, 
— of Southern New Brunswick, by Prof. L. W. Bartey, and Messrs. G. F. Mat- 
w & C.F. Har 56.—On Devonian Insects from New eas by S. H. 
Scones, $57,--Note on the Azoic age and metamophic origin of the Iron Ore of cn 
by J.D. Dana: Report on the Geology of Dlinvis, by A. H. WortHen: Chec 
as of the Miocene Invertebrate Fossils of North ‘Afalice, by F. B. Meer: as 
osaurian Skin: Murchison on the Drift, 358 —Annual Report of the Geological Survey 
of New Jersey, by Prof. Geo. H. Cook, 359 
Botany and Zoology—DeCandolle: Prodromus Syst. Na its Vegetabilis: J. D. 
Hooxer : Handbook of the New Zealand Flora, 359—Mart : Flora Brasiliensis : 
The Journal of the eae Society, 360.—Further remarks on sapiens budding, 
W..C. Minor, 362.—On the Hymenoptera of Cuba, b y E. T. Cresson : ines of 
the Bombycide of the Aat States, by A. S. Packarn, Jr., 363. 
Astronomy and Meteorology.——Correction of D, Trowbridge’s article on the Nebular Hy- 
pothesis, 363,-Cambridge Observatory in 1864: Extracts from the Address of W. Dg 
Bonn, 364.—Comet V, i864: Duration of the flight of shooting stars, 370.—Heights of 
Auroral Arches, ma i; 
eous Scientific Intelligence. -The Agassiz Expedition to South America, 371.— 
Temperature of the climate near large bodies of water: Carinthian Lake-habitations: 
A new meteorite from Arkansas: Cancerine: Large mass of Amber from India: Earth- 
quake at Buffalo, N. Y.: M. Louis Saemann, 372.—-Dr. A. Krantz, aaa 
‘Thomas B. Wilson : nies Emerson, 373,—William J. Walker, 37: 
Bibliography sts’ Directory, F. W. Purnam, na : The Social 
Science Review ; a Quarterly psc of Political Economy and Static, edited by 
ALEXANDER Dex%mar and Simon Stern: The Preparation and Moun 
“seopie Objects, by Tuomas Davigs, 374.--Triibner’s American and ens Record : 
American Journal of Conchology, edited by G W. Tryon, Jr.: Woodward’s Country 
saan, tah & F. W. Woopwarp: On the Oil-property of the Philadelphia and 
“ Petroleum Company, by B. Sintiman, 375. 
aa 376. 
