viii biological society of washington. 



One Hundred and Sixty-first Meeting, 

 May 3, 1S90. 



The President in the chair, and thirty-six members present. 



Mr. J. R. Edson was elected an active member. 



Dr. Robert Reyburn read a paper entitled The lyiFE 

 History of Micro-organisms with its Relation to the 

 Theory to Evolution.* Discussed by Dr. Theobald Smith, 

 Dr. Salmon, Mr. True, Mr. Erwin vSmith, Dr. Shaeffer, Mr. 

 Seaman and Dr. Dall. 



Dr. Vasey read a paper entitled A New Grass Genus. t 

 Discussed bv Messrs. Holm, Coville and Prof. Ward. 



One Hundred and Sixty-second Meeting, 

 May 17, 1890. 



The President iri the chair, and thirty -six members present. 



Mr. T. S. Palmer read a paper entitled Some Early Views 

 OF Geographical Distribution of vSpecies. Discussed by 

 Dr. MerriauL 



Mr. F. W. True exhibited a specimen of Lophiomys imhausii. 

 Discussed by Dr. Merriam. 



Prof. W. H. Seaman read a paper entitled The Place of 

 Biology in the Public Schools.! Discussed by Profs. 

 Chickering and Ward, Dr. Baker and Messrs. Waite and 

 Howard. 



One Hundred and Sixty-third Meeting, 

 Ma}' 31, 1890. 



The President in the chair, and twenty-six members present. 



Dr. C. H. Merriam exhibited specimens of sundry new 

 species of North American Mammals. Discussed by Dr. 

 Gill. 



* American Monthly Microscopical Journal, June, 1890. 



t Bot. Gazette, xv, 1890, p. 106. 



J The American Anthropologist for October, 1891. 



