188 



James R. Weir, Bureau of Plant Industry, Missoula, Mont., 

 Mr. Robert V. Evans, University of Montana, Missoula, Mont., 

 and Mr. E. C. McCarty, University of Montana, Missoula, 

 Mont. 



The resignation of Miss May A. Parker was read and was 

 referred to the Secretary for further correspondence. 



The first number on the announced scientific program, "A 

 New Part of the North American Flora," W. A. Murrill, was 

 postponed. 



B. O. Dodge read a short paper on "Converse Inoculation 

 Experiments in Gymnosporangium." 



Mr. Paul W. Graff followed with a paper on "Plant Diseases 

 in the Philippines." He spoke of the more important diseases 

 attacking crops of economic importance. 



" The sugar cane is particularly subject to the attack of the red- 

 rot caused by Colletotrichum. fulcatum. The "cane smut" and 

 "eye-spot" diseases are also quite common on this host. Bud- 

 rot has been reported as attacking the cocoanut. The leaf spot 

 caused by Pestalozzia palmarum may at times become severe 

 enough to materially weaken the host. The raising of coffee 

 has been almost entirely given up in the Islands because of the 

 inroads of Hemileia vastatrix. The banana, one of the most 

 important crops to the native, is attacked by the bacterial 

 disease common to the West Indies and Central America. Rice 

 is troubled by the attack of Ustilaginoides virens and sterility, 

 the cause of which is unknown. 



The growing period is the time of greatest infection, therefore 

 the time to spray for disease prevention to do the greatest 

 amount of good and in the most economical manner would be 

 during the first three weeks of the rainy season and a like period 

 at its close." 



Dr. N. L. Britton who had recently returned from a botanical 

 exploration of the Isle of Pines made a preliminary report of the 

 results of his investigations. 



Adjournment followed. 



B. O. Dodge, 



Secretary 



