xxi] biological society of washington. 



One Hundred and Forty-ninth Meeting, 



November 16, 18X9. 



( Postponed Ninth Anniversary Meeting.) 



The ninth anniversary meeting (postponed from its regular 

 date on account of Mr. Ball's illness) was held in the law 

 lecture hall of Columbian University, Nov. 16, 1889. A large 

 audience of members and guests was present. 



The former President, Mr. W. H. Ball, delivered an address 



entitled BEEP SEA MOLLUSKS AND THE CONDITIONS UNDER 



which they Live.* 



One Hundred and Fiftieth Meeting, 

 November 30, 1889. 



The President in the chair, and thirty-eight members 

 present. 



Br. B. E. Salmon read a paper entitled General Remarks 

 on Texas Fever, t 



Br. Theobald Smith followed with a paper on The Micro- 

 organisms of Texas Fever. + The discussion upon both 

 papers was participated in by Prof. Riley, and Brs. Curtice, 

 Salmon, and Smith. 



Mr. C. D. Walcott described A New Genus and Species 

 of Brachiopod from the Trenton Limestone. S 



One Hundred and Fifty-first Meeting, 

 Becember 14, 1889 



The President in the chair, and one hundred and four per- 

 sons present. 



;; Published in this volume. vSee pp. 1-22. 



t 1890. Report Proceedings Public Health Assoc, for 1889(10 press). 



X 18S9. Medical News, Nov. 4. 



I 1SS9. Proc. U. S. Nat. Mus., Vol. 12. 



