Proceedings. xi 



March ii, 1899— 304th 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— 305th 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— 306th Meeting. 



The President in the chair and 39 persons present. 

 The following communications were presented: 

 William Palmer: The Ferns of Hemlock Bluff. ^ 

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

 Erwin F. Smith: Biological Characteristics as a Means of 

 Species Differentiation. 



April 22, 1899— 307th 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. I 



May 6, 1899— 308th 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-G. 



fReport of Fur-Seal Investigation of 1896-7, Vol. Ill, pp. 09-74. 



tThe Plant World 3: 143-149. 1899. 



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



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



