

CONTENTS. 



W. A. Adams, 200. — Dr. Draper's discovery of Latent Light, 

 and of a curious class of Spectral Appearances connected with 

 Photography, 202, — On the Salt Steppe south of Orenburg, 

 and on a remarkable Freezing Cavern, by R. L Murchison, 

 Esq., Pres. G. S., 205 — Extracts from a letter addressed by Sir 

 J. Herschel to Mr. Murchison, explanatory of the Phenomena of 

 the Freezing Cave of Illetzkaya Zatchita, 206. — Further ob- 

 servations on the Meteors of Aug. 10, 1842, 208. — Meteoric 

 Observations in November, 1842, 209, — Meteoric Observations 

 in December, 1842, 210.— Solar Eclipse of July 8, 1842 : Dis- 

 covery of a Comet, 211. — Prof. Espy's Meteorological enter- 

 prise : Copal, 212. — Discovery of an Electrical Fish on the 

 coast of the United States : To detect minute quantities of 

 Arsenic and Antimony, 213. — Mineralogical systems, 214. 

 Atomic Weights of Elements : Sugar in the Stalks of Maize, 

 215. — Correction of the statement concerning an alleged 

 " Shower of red matter like blood and muscle :" Obituary of 

 Baron Louis Lederer, 216. 



Appendix. — Vindication of Claims to certain Inventions and Im- 

 provements in the Graphic Art; by Asa Spencer. 





NUMBER II. 



II. On the application of M. Riench's test for the detection 



of Arsenic, to Medico-Legal Enquiries ; by Prof. D. P. 



Gardner, M. D., 



III. A Catalogue of the Birds of Connecticut, arranged accord- 

 ing to their natural families; by Rev. James H. Lins- 



ley, A. M., 



IV. A double Sulphite of the Protoxide of Platinum and Soda, 



a new salt ; discovered and investigated by A. Litton, 



and SCHNE1>ERMAN, 



V 

 Page. 



Art. I. Notice of the Life and Labors of De Candolle; extracted 



[and translated] from the Address delivered before the 

 Royal Botanical Society of Ratisbon, Nov. 28, 1841, by 

 the President, Prof, von Martius, - 217 



240 



249 



- 274 



V. On the occurrence of Fossil Human Bones of the pra> 

 historical world ; — extract of a letter from Dr. Lund of 

 Logoa Santa, South America, translated and communica- 

 ted for this Journal, by Rev. Prof. E. E. Salisbury, - 277 

 VI. Suburban Geology, or Rocks, Soil, and Water, about Rich- 

 mond, Wayne County, Ind. ; by Dr. John T. Plummeb, 281 



