1018 EXPERIMENT STATION RECORD. 



the causes of the diseases, in the tracing of the life histories of many 

 of the fungi, and especially in devising effective means of control. It 

 was suggested that ignorance of the methods of practical agriculture 

 has been responsible for many impracticable recommendations by 

 plant pathologists, coupled with a disinclination to make field experi- 

 ments. The speaker advocated thorough testing of methods of treat- 

 ment on a commercial scale during a series of years as the safest and 

 most effective method of j^rocedure. Because of the complexity of 

 many problems, cooperative investigations with the economic ento- 

 mologist, the bacteriologist, the agriculturist, the horticulturist, or 

 the chemist were considered as often very essential. 



In a discussion of this paper the need for cooperation bj^ investi- 

 gators in different States in the study of those diseases which appear 

 only at intervals in a given region, such as potato blight and rot and 

 the downy mildew, was suggested. A similar opportunity was 

 pointed out in connection with the introduction of resistant strains 

 and varieties from other localities. 



The Relation of Cultural Methods to Plant Diseases was presented 

 in a paper by Dr. G. E. Stone. 



The topic for general discussion was The Duplication of "Work in 

 Agricultural Investigation, led by papers by Director H. T. French 

 on the duplication among stations, and by Prof. H. Garman on the 

 duplication between the stations and the U. S. Department of 

 Agriculture. 



The special topic decided on for the next meeting was Milk Pro- 

 duction, including Sanitation; and the subject for general discussion. 

 The Relation of the Experiment Station to Instruction Work, with 

 Special Reference to Its Popular Phases. 



