191 



Dr. Frederic E. Clements and wife, of the University of 

 Nebraska, have recently devoted a few weeks to consulting the 

 herbarium and library of Columbia University and the New York 

 Botanical Garden. 



Mr. R. S. Williams is again at the New York Botanical Garden 

 after a year and a half spent in Bolivia where he has made exten- 

 sive collections of plants. His gatherings are particularly rich in 

 bryophytes and ferns. 



Dr. William Austin Cannon, of the New York Botanical Gar- 

 den, has been awarded a grant of five hundred dollars by the 

 Carnegie Institution for the completion of cytological researches 

 relating especially to the oogenesis, spermatogenesis and fertiliza- 

 tion of certain plant hybrids. 



Professor F. S. Ea-rle returned to New York on December 2 

 from a six weeks' visit to the island of Jamaica. He was espe- 

 cially occupied while there in gathering data for a study of the 

 diseases of logwood, cocoanut, and other plants of economic im- 

 portance. 



Among the botanists visiting New York in the past few weeks 

 have been Professor Treub, Director of the Botanical Garden at 

 Buitenzorg, Java ; Professor F. E. Weiss of the Owens College, 

 Manchester, England ; and Professors Lester F. Ward and F. 

 H. Knowlton, of Washington, D. C. 



The American Association for the Advancement of Science, 

 the Botanical Society of America, the Society for Plant Morphol- 

 ogy and Physiology, and the Botanists of the Central and West- 

 ern States all hold meetings in Washington, D. C, during " Con- 

 vocation Week," December 27, 1902, to January 3, 1903. 



The Revue Bryologique announces the death of the distinguished 

 bryologist, K. Gustav Limpricht, which occured at Breslau on the 

 20th of October in his 69th year. Limpricht was best known by 

 his masterly treatment of the Musci of Germany, Austria, and 

 Switzerland in Rabenhorst's Kryptogamen-Flora. His writings 

 on the Hepaticae also are important and thorough-going. 



" The Ulothricaceae and Chaetophoraceae of the United 

 States," by Dr. Tracy Elliot Hazen, comprising Vol. 11, No. 2, 

 of the Memoirs of the Torrey Botanical Club, was issued in 



