THE PLANT WORLD 131 



Mr. Frederick A. Walpole, of the United States Department of 

 Agriculture, died on May 11, of typhoid fever, at Santa Barbara, Cali- 

 fornia. In many respects his loss is almost irreparable. Though a com- 

 paratively young man, he had attracted attention and gained a wide 

 reputation by the beautiful execution and remarkable accuracy of his 

 drawings of plants, which have been used for several years to illustrate 

 the botanical publications of the Department of Agriculture ; some have 

 also appeared in the narratives of the Harriman Alaska Expedition. 

 Personally, Mr. Walpole was one of the most modest and unassuming of 

 men, with a great charm of manner. He leaves a large collection of 

 unpublished drawings. 



As WE go to press we learn also of the death of Dr. H. H. Behr, for 

 many years professor of botany at the California College of Pharmacy, 

 author of the ' ' Flora of the Vicinity of San Francisco ' ' ; also of that of 

 Dr. Jose Ramirez, of the Institute Medico Nacional in the city of 

 Mexico. 



NOTES. 



Professor F. S. Eari,e has resigned from the staff of the New York 

 Botanical Garden and has left for Cuba to assume the directorship of the 

 newly-organized agricultural station near Havana. He will have with 

 him as assistants Mr. Carl F. Baker, Mr. Percy Wilson of the Garden, and 

 Mr. William T. Home, late Fellow in botany at Columbia University. 



Miss Mary Perle Anderson, whose prize essay on plant protection 

 appears elsewhere in this issue, has been appointed instructor in botany 

 at Mount Holyoke College. 



Mr. Wiluam R. Maxon, of theU. S. National Museum, has recently 

 sailed for Jamaica to continue his studies on the ferns of the island. 



Dr. George T. Moore, of the United States Department of Agri- 

 culture, has recently accomplished one of the most needed and successful 

 works of the century, in dealing with the pollution of drinking-water 

 supplies by algae and other plant organisms. The need of a preventive 

 or cure has been long too well known in many of our cities. The 

 adequate and at the same time economic method has appeared only after 

 Dr. Moore's untiring energy and repeated experiments expended on this 

 problem. His success, too, is to a large extent due to the able labors of 

 his assistant, Mr. Karl F. Kellerman. The method followed, without 

 going into details, is a treatment of the infected waters by varying 

 solutions of copper sulphate. The whole problem is covered in Bulletin 

 No. 64, Bureau of Plant Industry, of the above Department. 



