CONTENTS. V 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics.— On Ozone, by M. Berzelius, 265.— On the relations of 

 Glycocoll and Alcargene, by T. S. Hunt, 266.— Varrentrapp and Will's Method 

 for the Determination of Nitrogen ; An Improved Apparatus, by Prof. E. N. 

 Horsford, 267.— On a quick Method of determining the quantity of Nitrogen 

 in Organic Substances, by Eug. Peljgot : Preparation of Sulphocyanid of Am- 

 monium, by J. Liebig : On the Decomposition of Nitrite of Ammonia, by 

 E. Millon, 269.— On a new Mode of estimating the Nitrates, and particularly 

 Nitre, by J. Pelouze, 270.— On the Composition of Quinoidine, by J. Liebig : 

 On the Fat Acids of the Oil of Ben, by P. Walter: On the Fermentation of 

 Tartaric Acid, by I. Nickles: On the Preparation of Ferridcyanid of Potas- 

 sium, by A. and C. Walter: On the Method of separating Cobalt from Man- 

 ganese, proposed by Barreswil, by A. Strecker, 271.— Occurrence of Arsenic 

 in Vinegar: Mode of detecting the Adulteration of Olive Oil with Rape or 

 Poppy Oil, by M. Diesel : On a Ready Method of determining the Amount of 

 Nicotine in Tobacco, by M. Schloesing, 272.— On the influence of Ammonia 

 upon the Nutrition of Animals, by Fred. Kuhlmann, 273. — On several Deto- 

 nating Compounds formed by the action of Nitric Acid upon Sugar, Dextrine, 

 Lactine, Mannite and Glycerine, by Ascagne Sobrero : On the Exhalation of 

 Bicarbonate of Ammonia by the Lungs, by Lewis Thompson : Analysis of a 

 Concretion from a Horse's Stomach, performed by Mr. Charles M. Wetherill 

 and Dr. Boye, 274.— Acetate of Lime formed in Coal Pits, 275.— Reducing Cop- 

 per Ores by Electricity, 276. 



Mineralogy and Geology.— M. Nordenskiold upon Diphanite, a new Mineral Spe- 

 cies from the Emerald Mines of the Ural in the neighborhood of Catherinen- 

 burg, 277.— Mineralogical Notices, by Charles Upham Shepard, M.D., 

 (Tautolite on the north shore of Lake" Superior, 278 ; Farther account of the 

 Arkansite, 279; Native Platinum in North Carolina, 280.)— Oxyd of Cobalt 

 with the Brown Hematite Ore of Chester Ridge, Pa., 281.— Note by M. d'Or- 

 bigny on the Orbitolina : Observations on the Drift, Furrows, Grooves, Scratches, 

 and Polished Surfaces of the Rocks of Lake Superior, by Forrest Shep- 

 herd, 282. 



7 



Zoology.— Discovery of the Cranium of the Zeuglodon, by M. Tuomey, 283. 

 The Beaver in Alabama, by R. T. Brumley : Description of a new rapacious 

 Bird in the Museum of the Academy of Natural Sciences of Philadelphia, by 

 John Cassin,285.— Chamaea, a new genus of Birds allied to Parus, by William 

 Gambel, 286. 



Astronomy.— New Planet, 286.— Neptune, its Supposed Ring and Satellite : New 

 Comet: Vesta, 287. 



Miscellaneous Intelligence.— Fall of Meteoric Stones in Iowa, by Charles Upham 

 Shepard, 288—dutta Percha, 289—Smelting Copper Ore : On the Formation 

 of Cylindrical masses of Snow in Orkney, 292.— Arts and Sciences at Harvard, 

 294.-On some Researches in Animal Chemistry, (extracted from a letter from 

 Prof. Liebig, to Dr. A. W. Hoffman,) 298.— Palaeontographical Society of 

 London, 299.— Obituary— Ithamar B- Cravve, M-D., 300. 



Bibliography.— I. Geology; Introductory, Descriptive, and Practical. H- The 

 Ancient World, or Picturesque Sketches of Creation, by D. 1 . Ansted, M.A., 

 F.R.S., F.G.S., 300.— Natural Philosophy for the use of Schools and Acade- 

 mies, illustrated by numerous examples and appropr.ate diagrams, by Hamilton 

 L. Smith, A.M., 203-Hints to Young Architects, calculated to fixate their 

 practical operations, by George Nightwick ; and with Add.tional Notes, by 

 A. J. Downing, 302. 



List of Works, 303. 



