IV CONTENTS, 



XIII. Notice of newly discovered Fish Beds and a Fossil Foot- 



Mark in the Red Sandstone Formation of New Jersey ; 

 by W. C. Redfield, ..---- 



XIV. Strictures on Prof. Dove's Essay " On the Law of Storms ;" 



of Western 



York ; by Prof. C. Dewey, 



XIX. Description of a Carbon Voltaic Battery; by B. Silliman, 



Jr., A. M., 



XX. Bibliographical Notices : — Report on the Geology of Con- 

 necticut, 187. — Report on the Natural History of New 

 York, 188. — Johnston's Lectures on the application of 

 Chemistry and Geology to Agriculture: Turner's Ele- 

 ments of Chemistry, by Liebig and Gregory, 189. — Par- 

 nell's Elements of Chemical Analysis, Inorganic and Or- 

 ganic, 190. — The Chemical Gazette, or Journal of Prac- 

 tical Chemistry, 191. — Kane's Elements of Chemistry, 

 by Dr. Draper : An effort to refute the arguments advan- 

 ced in favor of the existence of the Amphide Salts, or 

 radicals, consisting, like cyanogen, of more than one ele- 

 ment, by Robert Hare, M. D., 192. — Murchison's Silu- 

 rian System : The Climate of the United States and its 

 Endemic Influences, by Samuel Forry, M. D. : Boston 

 Journal of Natural History, 193. — Nuttall's continuation 

 of Michaux's North American Sylva, 194. — Choisy, de 

 Convolvulaceis dissertatio tertia complectens Cuscutarum 

 hucusque cognitarum methodicam enumerationem et de- 

 scriptionem, etc., 195.— Spring, Monographic de la Fa- 

 mille des Lycopodiacees, 196. — Endlicher, Mantissa Bo- 

 tanica, sistens Generum Plantarum Supplementum secun- 

 dum, 193.— Hooker's British Flora: Phillips's Mineral- 

 ogy, new American edition, 199. 



Miscellanies. — Entomological Society of Pennsylvania, 199. 

 Foot-Marks and other Artificial Impressions on Rocks, by Prof. 



Page 



134 



by Prof. Robert Hare, M. D., - - - - - 137 



146 



XVI. Abstract of a Meteorological Register kept at Singapore, 



from Nov. 1, 1839, to Feb. 28, 1841, with Notices of the 

 Productions, &,c. of the Island ; by Joseph S. Travelli, 151 

 XVIL Abstract of the Proceedings of the Twelfth Meeting of the 



British Association for the Advancement of Science, - 158 

 XVIII. On the Rock Salt and Salines of the Holston ; by C. B. 



Hayden, - - - . - 



173 



180 



