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laboratory and Wild Life Sanctuary. The committee in charge 

 is headed by Dr. E. M. Gilbert, Professor of Botany at 

 the University. Dr. George W. Longenecker has been appointed 

 director of the Arboretum and Mr. Aldo Leopold, Professor of 

 Wild Life Management and Research Director. 



The Sixth International Congress of Botany will meet at 

 Amsterdam from September 2 to 7, 1935. It was originally 

 planned to hold the congress in September of the present year. 

 . (Science) 



From the United States Department of Agriculture comes 

 the announcement of the appointment of Knowles A. Ryerson 

 as Chief of the Bureau of Plant Industry, effective January 1, to 

 succeed Dr. W. A. Taylor. Dr. Taylor retires after 42 years' 

 service in the Department of Agriculture, the last 20 of which 

 have been as head of the Department's largest scientific bureau. 

 Dr. Ryerson is at present in charge of the Division of Foreign 

 Plant Introduction. During the war Dr. Ryerson served with 

 the Forest Engineers branch of the A.E.F. in France and in 

 several other capacities. He received from the French govern- 

 ment the Chevalier du Merite Agricole. 



Frederick D. Richey, at present in charge of corn investiga- 

 tion of the Bureau of Plant Industry, has been appointed to 

 assist Dr. Ryerson, as Assistant Chief of the department. Dr. 

 Richey will give special attention to research activities. 



Karl F. Kellerman, former Assistant Chief, becomes head of 

 a new Division of Plant Disease Eradication and Control in the 

 Bureau of Entomology. The division has had transferred to it 

 all activities directed towards the control and eradication of the 

 phony peach disease, blister rust, barberry rust, citrus canker 

 and Dutch elm disease. Dr. Kellerman will devote his entire 

 time to plant disease work, in which work he has been an out- 

 standing leader for twenty years. 



In connection with the erosion-control undertaken by the 

 Forest Service through the 103 erosion-control camps of the 

 Civilian Conservation Corps many thousands of trees must be 

 planted. Most of the planting will be done by the corps, but 

 many farmers will plant on their own land where gully-stopping 



