156 



Western Polypores* 



Including the species known to occur on the Pacific Coast 

 from California to Alaska. 



Tropical PoLYPOREsf 



Including species known to occur in Mexico, Central America^ 

 southern Florida, the West Indies, and the islands between 

 North America and South America. 



PROCEEDINGS OF THE CLUB 

 ]March 9, 1915 



The meeting of ]\Iarch 9, 1915, was held at the American 

 Museum of Natural History. President Harper presided. 

 Twenty-four persons were present. 



Professor W. L. Bray gave the lecture of the evening: "Some 

 aspects of the New York State vegetation." 



The speaker presented, with explanatory comments, part of 

 a series of slides made from his own and other photographs 

 showing various aspects of the vegetation of the state as de- 

 termined by or identified with local edaphic conditions. 



The point of view or method of treatment, which is to be- 

 more fully elaborated in a forthcoming bulletin, will be indicated 

 by the following partial summary furnished by the speaker: 



To get a properly magnified conception of the significance of 

 the developmental history of vegetation one should begin by 

 considering the terrain as it lay after the retreat of the last 

 glacial invasion — a terrain naked of vegetation covering and 

 characterized by features incident to glacial action which would 

 profoundly influence the course of a subsequent conquest by 

 vegetation; for example, the general covering of glacial deposits 

 with such special features as moraines, drumlins, etc.; sand 

 deposits upon the Adirondack relief; filled drainage channels 

 such as the Conewango valley and the blocking of the outlet of 



* Murrill, W. A. Western Poh'pores. Pp. i-iv + 36. Privately published^ 

 Februarj-, 1915. Price in cloth, Si. 00 postpaid. 



t Murrill, W. A. Tropical Polypores. Pp. i-iv + 113. Privately published- 

 March, 1915. Price in cloth, Si. 50 postpaid. 



