298 



on motion, referred to the same Committee who had charge of 

 the first communication. 



The present meeting being the one at which, according to 

 the rules of the Society, applications for premiums should be 

 considered, and the resolution of the Society, passed the 20th 

 of Nov. 1S46, on the subject of the parallatic eye-piece, being 

 out of order, the following resolution was offered: 



" Resolved, That the action of the Society on the Treatise on a Pa- 

 rallatic Eye-piece, upon the 20th of November last, be and the same 

 is hereby confirmed." 



On motion of Mr. Lea, at the request of Mr. Haldeman, this 

 gentleman had leave to make certain amendments to his paper 

 on Longicornia, already ordered for publication. 



Dr. Patterson exhibited to the Society a bronze medal of 

 President Polk, recently prepared at the Mint of the United 

 States. This medal is the representation on a small scale of a 

 much larger medallion formed in wax, as a portrait from life. 



The wax medallion being covered with a metal die powder, 

 is by the electrotype process and a subsequent transfer in sand, 

 made to form a mould, from which a new medallion is cast 

 in fine iron. The iron medallion is then placed under the ac- 

 tion of a portrait lathe propelled by steam, and by the con- 

 tinued action of the lathe, a die is cut of the desired size, and 

 of softened steel. The die is then slightly retouched, and 

 being afterwards hardened, is applied in the ordinary manner 

 of striking medals. This medal is beautifully finished, and 

 bears a comparison with those made by the direct action of 

 the die-sinker. 



Pending nominations, Nos. 193, 194, were read, and new 

 nomination. No. 195, was presented and read. 



Dr. Meigs, on leave, made a verbal communication on the 

 Corpus Luteum, which he had recently observed by a power- 

 ful microscope. 



On motion of the Librarian, it was ordered, that a complete 

 set of the Transactions be sent to the Royal Lombardy Insti- 

 tute of Science and Arts, at Milan. 



