86 Botany in the Experiment Station. 



tions made for preventing it. The most important contribution as 

 a result of his nivestigations thus far is the BHght Canker of Apple 

 Trees, Bulletin No. 236, February, 1906. This is a widespread and 

 very serious disease, especially in certain parts of the State. Mr. 

 Whetzel demonstrated the identity of this disease with the Fire 

 Blight of Apples and Pears and gives a history of it, a full discus- 

 sion of its characters, and its method of attack, with suggestions as 

 to its control. The bulletin is illustrated with a large number of 

 photographs showing the injuries caused by the disease. 



Bulletin No. 239, Some Diseases of Beans, is largely a compila- 

 tion prepared as an emergency bulletin to meet the demand for in- 

 formation on this subject from bean growers in the State. 



Professor Whetzel has now in progress studies on a large number 

 of diseases of plants. Among these is a leaf spot disease of ginseng, 

 caused by a species of Alternaria. This is the most serious and 

 widespread disease of ginseng in this State. Material is nearly 

 ready for a bulletin on this subject. 



Professor Whetzel himself will make a fuller report on work 

 which he has in progress. 



GEO. F. ATKINSON, 



Botanist. 



