Proceedings. xi 



March n, 1899 304 th Meeting. 



The President in the chair and 93 persons present. 



The evening was devoted to a lecture by Mr. Robert T. Hill 

 on 'The Natural Aspects of Porto Rico' (illustrated by numer 

 ous lantern slides). 



March 25, 1899 305 th Meeting. 



The President in the chair and 39 persons present. 



The following communications were presented: 



T. S. Palmer: The Danger of Introducing Noxious Animals 

 and Birds.* 



M. B. Waite: The Effects of the Recent Severe Cold on 

 Vegetation. 



F. A. Lucas: The Mental Traits of the Fur-Seal, f 



April 8, 1899 3o6th Meeting. 



The President in the chair and 39 persons present. 

 The following communications were presented: 

 William Palmer: The Ferns of Hemlock Bluff. J 

 O. F. Cook: Notes on the Habits of African Termites. 

 Erwin F. Smith: Biological Characteristics as a Means of 

 Species Differentiation. 



April 22, 1899 3<>7th Meeting. 



The President in the chair and 38 persons present. 

 The following communications were presented: 

 T. D. A. Cockerell: Faunae and Faunulae of New Mexico. 

 Oscar Loew: On the fermentation of Tobacco. 

 Albert F. Woods: Some Microchemical Reactions resembling 

 Fungi. || 



May 6, 1899 3o8th Meeting. 



In the place of the 'regular meeting of the Society, a joint 

 meeting with the Chemical Society was held, President Stokes 



*Yearbook U. S. Dept. of Agr., 1898, pp. 87-110, figs. 1-6. 



fReport of Fur-Seal Investigation of 1896-7, Vol. Ill, pp. 69-74. 



{The Plant World 2: 143-149. 1899. 



^Report No. 59, U. S. Dept. of Agr. 



1 Science n. s. IX, No. 223, pp. 508-510. April 7, 1899. 



