Gl 



was so situated that it was exposed only to the morning sun. 

 (The room was thoroughly sprayed from a hydrant both morning 

 and evening.) The explosions occurred after four in the afternoon 

 and immediately followed a spraying of the plants. Within one 

 to three minutes the plants looked as if smoke was coming from 

 them. This was so conspicuous as to be noticed from any part 

 of the room. A closer view showed that the smoke-like sub- 

 stance was coming in little puffs from the surface of the liver- 

 worts, not unlike a tiny battery. The material seemed most 

 abundant from two to four inches above the plants. The writer 

 and Professor Mottier both held slides over the plants and caught 

 the spermatozoids in great numbers. The conspicuous discharges 

 lasted only about five minutes and in four or five minutes more 

 none could be noticed. 



The above observations seem to indicate that moisture alone 

 may be the inciting cause of the explosion in Conocephalum con- 

 ic inn. 



DeWitt Clinton High School, New York City, 

 March 16, 1903. 



PROCEEDINGS OF THE CLUB 



Wednesday, February 25, 1903 



The Club met at the usual hour at the New York Botanical 

 Garden, with President Brown in the chair. There were 30 

 persons present. 



The resignation of Professor H. F. Osborn, of New York 

 City, was accepted. 



The president announced the following standing committees 

 for 1903 : 



Committee on Finance : H. H. Rusby, J. I. Kane, C. F. Cox. 



Committee on Admissions : Cornelius Van Brunt, Delia W. 

 Marble, J. K. Small. 



Committee on Local Flora : Phanerogamia — N. L. Britton, E. 

 P. Bicknell, H. H. Rusby, Fanny A. Mulford. Cryptogamia — 

 L. M. Underwood, M. A. Howe, Elizabeth G. Britton. 



