Proceedings. ix 



March 26, 1898 290th Meeting. 



The President in the chair and 45 persons present. 



The evening was devoted to a symposium on ' The Compara 

 tive Value of Factors Influencing the Distribution of Life,' with 

 the following speakers : C. Hart Merriam, L. O. Howard, W. H. 

 Dall, F. V. Coville, Theodore Gill, B. E. Fernow. B. W. Ever- 

 mann, and F. W. True. 



April 9, 1898 291st Meeting. 



Ex-President Theodore Gill in the chair and 28 persons 

 present. 



Vernon Bailey exhibited specimens of sticks cut by beavers, 

 explaining the methods pursued by the animal in this operation. 



The following communications were presented : 



O. P. Hay : Observations on the Cretaceous Fishes called by 

 Professor Cope ' Portheus.' 1 * 



W. H. Osgood : Notes on the Natural History of the Farallon 

 Islands. (Illustrated by lantern slides.) 



William Palmer: A Phase of Feather Repigmentation. 



April 23, 1898 292d Meeting. 



Ex-President W. H. Dall in the chair and 65 persons present. 



Charles L. Pollard exhibited the fruit of Poinciana regia and 

 of Cvesalpinia bonducella, commenting on their occurrence in south 

 Florida. 



The following communications were presented : 



C. Hart Merriam : Life Zone Conformities in the Distribution 

 of Oregon Ground Squirrels. 



Ernest Seton Thompson : The Personality of Some of Our 

 Wild Animals. (Illustrated by lantern slides.) 



May 7, 1898 293d Meeting. 



Vice-President B. E. Fernow in the chair and 60 persons 

 present. 



The topic for the evening was ; The Fauna and Flora of the 

 Florida Keys,' illustrated by lantern slides, the speakers being 

 O. F. Cook, E. L. Morris, and Charles L. Pollard.f 



* Zoological Bull., 2, No. 1, pp. 25-54, 1898. 



f A portion of the topics discussed in this communication will form the 

 basis for a report to be published in Contr. U. 8. Nat. Herb. 



IT BIOL. Soc. WASH., You XII, 1898 



