^00 [April i_ 



writer. A letter was read from M. J. Thore, of Dax, France, 

 accompanying tiis pamphlet, entitled " Une Nouvelle Force V 



A photograpli for the Society's Album was received from 

 Prof. J. W. Moore, of Easton, Pa. 



Accessions to the Librar}^ were announced from Geological 

 Survey of India, Calcutta; Gartenbauverein, Darmstadt; Astro- 

 nomische Nachrichten, Kiel ; Zoologischer Anzeiger, Leipzig ; 

 " Der Naturforscher," Tubingen; Socicte Hollandaise des Sci- 

 ences a Harlem ; Biblioteca N. C. di Firenze Societe Toscana 

 di Scienze Naturali, Pisa ; R. Ac3ademia de Lincei, Eome ; 

 Socieie de Borda and Mr. J. Thore, Dax; Societes de Geo- 

 graphic, de L'Enseignement and publisher of the Revue de 

 L'Enseignement Secondaire et Supc'rieur, Paris ; Sociedade de 

 Geographia, Academia R. das Sciencias, Lisbon ; Royal Society, 

 Geological Society, Royal Astronomical Society, Meteorologi- 

 cal Council, "Nature," and "The Earth," London; Cambridge 

 Philological Society ; Bath and West of England Society ; 

 Natural History Transactions of Northumberland, Durham 

 and New Castle on Tyne ; publisher of the " Travelers' Record," 

 Hartford ; Brooklyn Entomological Society ; Franklin Insti- 

 tute, Engineers' Club, Journal of Medical Sciences, Mercantile 

 Library Co., publisher of the " American Naturalist," and 

 Mr. Henry Phillips, Jr., Philadelphia ; Germantown Dispen- 

 sary and Hospital ; Johns Hopkins University, Prof. Ira 

 Remsen, Baltimore ; Bureau of Education, Department of 

 State, Washington, D. C. ; Rev. Stephen D. Peet, and the pub- 

 lisher of "The Open Court," Chicago; Observatorio Meteoro- 

 logico Magnetic© Central, Mexico. 



The Secretaries presented a communication from Prof. E. 

 W. Clay pole, Akron, Ohio, entitled "On Organic Variation, 

 indefinite not definite in direction, an outcome of environ- 

 ment." 



Prof. Barker made a communication on the methods and dis- 

 coveries of Prof. Pickering in Astronomical Physics, based 

 upon his researches with the Bache and Draper funds, and ex- 

 hibited spectra of the stars a Cyjni and a Tauri, on which 

 some remarks were made by Dr. Frazer. 



