• ■ 



CONTENTS, Vll 



XXXIL On Parthenogenesis, •--••. 



XXXIIL Correspondence of M. Jerome Nickles — Obituary, 408. 



Statues of Gay Lussac and Elienne Geoffrey St. Hilaire, 

 409. — History of Science ; The Natural Method in Botany 

 and Zoology : Theory of Substitutions, 410. — Electric Illu- 

 mination; Atmospheric electricity ; theory of thunder: New 

 anesthetic agents, 411, — Anesthesis by the Oxyd of Carbon : 

 Anesthesis by carbonic acid : Preparation of Annylene, 412. 

 Miscellaneous Researches, (1.) Siliciuret of hydrogen; 

 (2.) Formation of Cane Sugar from Glycerine, of Mannite, 



I* 



etc, ; (3.) Eesearches on Tungsten ; Bibliography, 413. 

 Extracts from the Address of the President of the British Asso- 

 ciation, Rev. Humphrey Lloyd, at the Meeting, Aug. 26, 

 1857, - - . - 



Page. 



399 



415 



SCIENTIFIC INTELLIGENCE, 



Chemistry and Physics. — On the calculation of llie densities of vapors, 422. — On the com- 

 binations of the hydracids With hydrocarburels ; On invefse substitutions: On Sili- 

 ciiim and the metallic siliciarets, 423. — On the oil of the Dutch chemists, 42i — New 

 derivatives of saliryl and new iodids of organic radicals : On the true formula of oxalic 

 acid, 455. — Protosulphid of Carbon : On Glyoxal and Glyoxylic acid, 426. — On the 

 equivalents of Nickel and Cobalt, 427. 



Geology. — Geological Report of the Midland Counties of North Carolina, by E. Emmoxs, 

 427. — Illustratioae of Surface Geology, by Edward IIjtchcock, LL.D., 430 — Outlinea 

 of the Continents: Third Annual Report on the Geological Survey of the State of New 

 Jersey for the year 1856, 433. — Microgeology of Ehrenberg : Note on New Fossils in 

 the Potsdam Sandstone at Keeseville, N. Y,, by J. D. Dana, 434. 



Botany and Zoology. — An Elementary Conrse of Botany ; Structural, Physiological, and 

 Systematic; with a brief Outline of the Geographical and Geological Distribution of 

 Plants, by ARTHrR Hexfkey, F.R.S,, L,S., Ac, 434.— Naudm's Researchea into the 

 Specific Characters and the Varieties of the Genus Cucurbila, 440, 



Miscellaneous Scientijic InteWgence.—Smdles in Organic Morphology, by John Wahrkw, 

 443.— Gyroscope : Rapidity of thought or nervous action, by M. Ulk : Smithsonian 

 Contribuiiona to Knowledge, 415. — A Monograph of the Tertiary Entomosiraca of 

 England and Ireland, by T. Rupert Jones, F.G.S. : Terrestrial .Magnetism at Brus- 

 sels and Paris : Fishes of China, 446. — United States Japan Expedjtjon, by Commodore 

 Perry: Fossils of South Carolina, by M. Tuomet and F. S.Holmes : Specimen 

 Tables Calculated and Stereomonlded by the Swedish Calculating Machine: On Fich- 

 teliie: Astronomical observations, made under the direction of M. F. Maurv, 447. 

 Annals of the Astronomical Observatory of Harvard College: Patent Office Report : 

 Illustrated Annual Register of Rural Affairs for 1858; Jllu&trated Scientific and De- 

 scriptive Catalogue of Achromatic Microscopes manufactured by J. & W. Grunow 

 & Co., 448— Annals of the Lycenm of Natural History of New York : Supposed Me- 

 teorite, 449.— New Publications, 4^, 



Index, 451. 



