187 



The Committee, consisting of Mr. Nicklin, Prof. Bache, and 

 Dr. Hays, to whom was referred a Paper entitled " On the Pa- 

 tella Amasna of Say, by Isaac Lea," reported in favour of 

 publication, which was ordered accordingly. 



In this Paper Mr. Lea gives a Synonymy, showing that the 

 Patella Amama of Say was first described by Midler, under the spe- 

 cific name of Testudinalis : Zool. Dan. p. 237,' and Mr. Couthouy, 

 having lately given an elaborate description of the animal, in the 

 Boston Journal of Natural Science, showing that it belongs to the 

 new genus Patelloida, recently established by Quoy and Gaimard; 

 Mr. Lea argues that it should henceforth be called Patelloida Tes- 

 tudinalis. 



A Communication was read, entitled, " On the Storm which 

 was experienced throughout the United States, about the 20th 

 of December, 1836; by Elias Loomis, Professor of Mathema- 

 tics and Natural Philosophy in Western Reserve College," 

 which was referred to a Committee. 



Dr. Hare read a Communication, entitled, " 1. The Well- 

 known Features of the Climate of the Atlantic States. 2. On 

 Certain Facts and Inferences respecting the Origin and the 

 Effects of the Trade Winds, and the Westerly Breezes which 

 they must induce, or into which they must be deflected. 3. Of 

 Certain Facts or Laws of Electrical Reaction, which have been 

 ascertained experimentally, and which render it irrational not 

 to consider Electricity as the Principal Instrument of Nature 

 in the Production of Storms." 



The Paper was referred to a Committee. 



Mr. Peale exhibited specimens of Medals, obtained by the 

 process of Professor Jacobi. He stated, that Mr. Eckfeldt, of 

 the Mint, had found the specific gravity of the copper, thus 

 procured, to be as high as that of rolled copper; that is, 8.95. 



Mr. Peale also exhibited a diaphragm of parchment, which 

 had been used in the battery employed in the process; and 

 upon which metallic copper had been precipitated. He farther 

 exhibited specimens of Metallic Silver, reduced, by a similar 

 process, from the chloride of silver: but remarked, that it was 

 not likely to lead to any useful analogous result, owing to the 

 silver being deposited in a granular state. 



B 



