194 abstracts: geology, phytopathology 



Cuba is an organism practically identical with Bacillus coli (Escherich) 

 Migula. Inoculations into coconut seedlings with B. coli of animal 

 origin gave infection similar to inoculations with the coconut organism. 

 It is believed that birds and insects are carriers of this disease; stomatal 

 infections are common on the young tissues. The study of the bud- 

 rot disease of the coconut palm suggests that diseases of several other 

 palms may be due to the same cause. No coconut district is secure from 

 danger of infection of the bud-rot disease. The control of the disease 

 will probably depend upon better sanitation and improved methods of 

 cultivation. The cutting out and burning of all diseased tree tops and 

 the removal of fallen leaves and nuts are especially necessary. It is 

 believed that the bud-rot disease of coconuts does not occur in the island 

 of Porto Rico. K. F. Kellerman. 



PROGRAMS AND ANNOUNCEMENTS 



PHILOSOPHICAL SOCIETY OF WASHINGTON 



Saturday evening, April 6, 1912; Cosmos Club. Mr. A. F. Zahm: 

 Evolution of the Aeroplane; its Fundamental Features of English origin. 



