t)(J [Hjay 21, 



• 



dea, Frankfurt, a.-M. ; Editors of the Neues Lausitzisches 

 Magaziu, Gorlitz ; Natural History Society, Marburg ; 

 Physical Society, Geneva ; Bureau des Longitudes, Society 

 of Antiquaries, Annales des Mines, and Editors of the 

 Revue Politique, Paris; Physical and Geographical Socie- 

 ties, Bordeaux ; Editors of the Revista Euskara, Pamplona ; 

 Royal Institution, Roy ah Geographical Society, Meteorologi- 

 cal Society, Editors of Nature, and Lords of the Admiralty, 

 London ; Glasgow Geological Society ; Editors of the Cana- 

 dian Naturalist, Montreal ; Massachusetts Historical So- 

 ciety; Peabodj^ Museum, and Museum of Comparative 

 Zoology, Cambridge ; Editor of the North American En- 

 tomologist, and Young Men's Association, Buffalo; Mr. 

 Barclay and Mr. Henry Phillips, Jr., Philadelphia; the 

 Bureau of Education, and Mr. Asaph Hall, Washington ; 

 Cincinnati Society of Natural History ; State Historical So- 

 ciety, Madison, Wisconsin ; Missouri Historical Society, St. 

 Louis ; and the National Museum, Mexico. 



Mr. Henry Phillips, Jr., read a paper entitled, " Some 

 recent discoveries of stone implements in Africa and Asia." 



Prof. Cope made some remarks "On certain Tertiary 

 Strata of the Great Basin." 



In Vol I of the Report of the United States Geological Survey of the 

 Fortieth Parallel, page 393, the able author, Mr. King, has described an 

 extensive series of beds, including many laminated shales, which are found 

 in the northern part of Nevada, as constituting an extension of the Green 

 river formation west of the Wasatch mountains.* He states that they 

 contain the same species of fossil fishes as those of the Green river epoch. 

 I published the first notice of this formation, which I examined at Osino 

 and at Elko, Nevada,f and described from it two species of fishes, which were 

 referred to genera previously unknown, viz : Amyzon and TricliopTianes. 

 These genera have not been found represented in the fish fauna preserved 

 in the Green river shales, which embraces eight genera and twenty-four 

 species. But they occur in several species and specimens in tlie Soutli 

 Park of the Rocky mountains of Colorado, associated with the genera Rhin- 

 eusies and Amia, neither of which has yet been found in the Green river 

 formation. The first named is common in the Bridger, but in a diflex'ent 

 form, and the generic identity is not yet fully established. The Amia is 



* 1. c. I. p. 393. 



t Proceedings Amer. Pbilos. Soc. 1872, p. 468. 



