xii biological society of washington. 



One Hundred and Seventieth Meeting. 

 (Tenth Annual.) 



The President in the chair, and forty-two members present. 



The annual reports of the Secretary and Treasurer were 

 read and accepted. 



The following board of oflBcers was elected for the ensuing 

 year : 



President — C. Hart Merriam. 



Viee-Presidenis — C. V. Riley, Frank Baker, Richard Rath- 

 bun, and C. D. Walcott. 



Secretaries — L. O. Howard and F. A. L^ucas. 



Treasurer — F. H. Knowlton. 



Mernbers of Council— V . W. True, T. H. Bean, R. E. C. 

 Stearns, Theobald Smith, and Geo. Vasey. 



One Hundred and Seventy-first Meeting, 

 January 26, 1891. 



(Eleventh Anniversary Meeting.) 



The eleventh anniversary meeting was held in the law 

 lecture-room of Columbian University, January 26, 1891, 

 in the presence of members and invited guests. 



The President, L^ester F. Ward, delivered his annual address 

 on the subject Neo-Darwinism and Neo-Lamarckism.* 



One Hundred and Seventy-second Meeting, 

 February 7, 1891. 



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



The President announced the following committees for the 

 ensuing year : 



Joint Commission — C. Hart Merriam, Lester F. Ward, Rich- 

 ard Rathbun. 



* Published in this volume. See pp. ii-71. 



