Proceedings. xxiii 



Vernon Bailey : " The Influence of the Cross Timbers on the 

 Fauna of Texas." Discussed by Mr. Van Deman, Dr. Merriam, 

 Professor Ward, and Professor Cope. 



Novemher 19, 1892. 200th .Meeting. 



The President in the chair and 24 persons present. 



COMMUNICATIONS. 



Theobald Smith: "On Certain Minute Bodies (Parasitic?) 

 Within the Red Blood Corpuscles." ^ Discussed by Dr. Stiles, 

 Dr. Reyburn, and Dr. Erwin F. Smith. 



C. W. Stiles : " The Topographical Relations of the Excretory 

 Canals of Cestodes."^ Discussed by Dr. Dale and Dr. Stiles. 



David White: "A New Walchia from New Mexico." Dis- 

 cussed by Professor Ward. 



F. ]\I. Webster (read liy the Recording Secretary) : '' Some 

 Entomological Factors in the Problem of Country Fences." ^ 



F. V. Coville: *' Comparative Values of Plants in Determin- 

 ing Floral Zones." Discussed by Dr. Merriam. 



December 3„ 1892. 201st Meeting. 



The President in the chair and 26 persons present. 



communications. 



B. W. Evermann : " The Cruise of the U. S. Fish Commission 

 Steamer Albatross in Alaskan Waters in 1892." Discussed by 

 Dr. Merriam, Dr. Gill, Dr. Dale, Mr. Townsend, and Mr. Lucas. 



George Vasey : " Some New Grasses." Discussed by Mr. 

 Dewey. 



J. N. Rose : " On the Rediscovery of Certain Rare Plants," 



C. Hart Merriam : '' Exhibition of a Complete Series of the 

 Large American Ground Squirrels of the Subgenus Otospermoph- 

 ilus.^^ Discussed by Dr. Gill, Mr. Coville, and Dr. ]\Ierriam. 



B. E. Fernow: "-The Mathematics of Forest Growth." 



^ Theobald Smith and F. L. Kilborne : Investigations into the nature, 

 causation, and prevention of Texas or Southern cattle fever. Bull. No. 1, 

 Bureau of Anhnal Industrj^ U. S. Dept. Agriculture, 1893, p. 6<S. 



^ Beuierkungen iil^er Parasiten 17. Ueber die topographisehe Anatoniie 

 des Gefiiss systems in der FamiUe T;eniad;e ; Centrall:>latt fiir Bakteriol- 

 ogie und Parasitenkunde, vol. xiii, 1893, i>. — , figs. 1-12. 



^ Some entomological factors in the prol>lem of countr}' fences. Science, 

 vol. XX, Dec. 16, 1892, pp. ;:,37, 338. 



