204 PROCEEDINGS OF THE AMERICAN ACADEMY 



" In the arrangement of the alloy of carbon and iron, and the lamina 

 of graphite, it differed in no respect from ' Kishy ' iron which has 

 been allowed to repose in a heated state, and is unquestionably an arti- 

 ficial iron, — a product of the blast furnace." 



Professor Agassiz said that he had received, through the 

 kindness of Dr. Green, of Commodore Perry's Japan Expe- 

 dition, the bag containing the immature young of a vivipa- 

 rous fish from Japan. He regretted that the whole of the 

 parent fish had not been preserved, but he hoped to be able 

 from the embryos to make out the characters of a new genus, 

 which may be regarded as the Asiatic representative of this 

 interesting type. The specimens were from the shores of 

 Simoda. 



Professor J. P. Cooke gave in detail the processes by which 

 he had obtained perfect octohedral crystals of arsenic. He 

 was led to do so by the fact that their genuine character 

 had been called in question. 



Dr. A. A. Hayes confirmed, from his own knowledge, the 

 fact of the production of such crystals in other ways. 



Four hundred and eigliteeutli meeting. 



October 9, 1855. — Monthly Meeting. 



The President in the chair. 



The Recording Secretary, in behalf of the author, presented 

 the following paper, viz. : " Descriptions of New Species of 

 Fossils, from the Cretaceous Formations of Nebraska, with 

 Observations upon Baculites ovatns and B. co77ipressus, and 

 the Progressive Development of the Septa in Baculites, Am- 

 monites, and Scaphites. By Professor James Hall, of Al- 

 bany, N. Y." 



Professor J. P. Cooke exhibited and explained a printed 

 chart of his classification of the chemical elements, The 

 plan was the same as one already published by him, with 

 some modifications. 



