x The Biological Society of Washington. 



May 24, 1898 294th Meeting. 



The President in the chair and 20 persons present. 



The following communications were presented : 



F. C. Kenyon : Recent Experiments on the Nervous System 

 of Arthropods, their Significance, and the Problems that Remain 

 Unsolved. 



Nathan Banks: The Scorpions of the Eastern United States.* 



Gilbert H. Hicks : The Vitality of Seeds. 



H. J. Webber: Researches on the Reproduction of Cycada- 

 ceous Plants. 



October 22, 1898 295th Meeting. 



The President in the chair and 37 persons present. 



E. L. Morris commented on the frequency with which speci 

 mens of Colocasia esculenta in cultivation in Washington had 

 bloomed during the past summer. He also cited a case of morn 

 ing flowering in Cereus grandiflorus. 



T. A. Williams noted the occurrence of a rare lichen, Hydro- 

 thyrid mwsa, at several localities in the West. 



T. S. Palmer spoke of Neomylodon, an alleged living representa 

 tive of a family of extinct edentates. 



The following communications were presented : 



J. N. Rose: Proposed Rearrangement of the Subfamily Aga- 

 vese. (Illustrated by numerous living plants.) f 



F. A. Lucas: The Fossil Bison of North America, with De 

 scription of a New Species. J 



A. J. Pieters : Problems of Aquatic Vegetation. 

 Gilbert H. Hicks : The Effect of Certain Fertilizers on the 

 Germination of Seeds. 



November 5, 1898 296th Meeting. 



The President in the chair and 42 persons present. 

 F. V. Coville exhibited a piece of lava from Mt. St. Helens? 

 bearing the impression of the bark of a pine. 



*To l>e published probably in Trans. Am. Ent. Soc. 

 t To be published in Contr. U. S. Nat. Herb, 

 t To be published in Proc. U. S. Nat. Mns. 



\ To be published as a Bulletin of the Division of Botany, U. S. Dept, 

 of Agriculture. 



