XII BIOLOGICAL SOCIETY OF WASHINGTON. 



Dr. C. Hart Merriam described A New Species of Bat, 

 Vespertilio ciliolabrum, from the Western States.* 



One Hundred and First Meeting, December ii, iSS6. 



The President in the chair, and twenty-three persons present. 



The following papers were read : 



Dr. Theobald Smith, Parasitic Bacteria and Their Re- 

 lation TO Saprophytes. 



Mr. F. A. Lucas, On the Osteology of the Spotted Tin- 

 amou, Nothura maculosa.! 



Mr. C. D. VValcott, Crustacean Tracks Found on Strata 

 of Upper Cambrian (Potsdam) Age. 



Dr. Frank Baker, The Foramen of Magendie.J 



Dr. C. Hart Merriam, Description of a New Sub-species 

 of Pocket Gopher, from the Colorado Desert of South- 

 ern California. § 



One Hundred and Second Meeting, January 8, 1SS7. 

 (Seventh Annual Meeting.) 



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



The annual reports of the Secretary and Treasurer were read 

 and accepted. 



The following board of officers was elected for the ensuing 

 year : 



President— ^x. William H. Dall. 



Vice-Presidents — Prof. Lester F. Ward, Dr. Frank Baker, 

 Mr. C. D. Walcott, Dr. C. Hart Merriam. 



Secretaries— yix. Richard Rathbun, Mr. Frederic, A. Lucas. 

 Treasurer — Mr. F. H. Knowlton. 



* 1886. These Proceedings, iv, pp. 1-4 (Extras issued Dec. 17, 1886). 

 ti886. Proc. U. S. Nat. Mus., p. 157. 



X Embodied in the article, "Meninges," Wood's Reference Hand-book of 

 Medical Sciences, vol. viii. 

 § Science, Dec. 24, 1886, 588. 



