CONTENTS. 



chichte der Natur, 213. — Draper's Treatise on the Forces 

 which produce the Organization of Plants : Downing's 

 Treatise on the Theory and Practice of Landscape Gar- 

 dening, 214. — Guy's Principles of Forensic Medicine : 

 Hatfield's American House Carpenter, 215. 



Miscellanies. — Prof. Henry's Experiments on Soap Bubbles, 215. 

 — Fossil Footmarks in Strata of the Carboniferous Series in 

 Westmoreland County, Penn., 217. — Formula of the Mason- 

 ite of Dr. Jackson, 218. — Tenorite : Sillimanite : Mr. Phil- 

 lips's Mineralogical Collection : Faye's Comet, 219. — Note 

 from Dr. Hare, correcting an error in his Strictures on Prof. 

 Dove's Law of Storms : The Southern Journal of Medicine 

 and Pharmacy, 220. 



NUMBER II. 



Page. 



Art. I. On Galvanography, or the art of producing from copper 

 plates, formed by galvanic action, impressions from de- 

 signs painted in the style of Sepia sketches ; by Prof. 



VON KOBELL, 221 



II. Remarks by Dr. Hare, on a recent speculation by Faraday 



on electric conduction and the nature of matter, 247 



III. On the Zinc Mines of Franklin, Sussex County, New Jer- 



sey ; by Francis Alger, .■ . . . . 252 



IV. Description of the Head of a Fossil Crocodile from the 



Cretaceous Strata of New Jersey ; by Samuel George 



Morton, M. D., 265 



V. Observations on a Second Series of Ancient Egyptian 



Crania ; by Samuel George Morton, M. D., - - 268 

 VI. Catalogue of the Shells of Connecticut ; by the late Rev. 



James H. Linsley, - - - - . - 271 

 VII. Abstract of a Meteorological Journal, for the year 1844, 



kept at Marietta, Ohio ; by S. P. Hildreth, M. D., - 287 

 VIII. Description of some Microscopic Shells from the Decom- 

 posing Marl Slate of Cincinnati ; by James Hall, - 292 

 IX. Review of the New York Geological Reports, - - 296 

 X. Observations made at New Haven, Conn., on the Shoot- 

 ing Stars of the August Meteoric Period, in 1844 ; com- 

 municated by E. C. Herrick, .... 316 



