Diseases 231 



Johnston 1 says, " How do I know bud-rot at 



all? Because I have seen a tree, one 



of several, bearing twenty-five or thirty healthy 

 green leaves with no appearance of yellowing, 

 and about sixteen spikes containing in all more 

 than 100 nuts, and four or five green swords, 

 but with one spike which had dropped all of 

 its nuts, which were about 2 in. in diameter. 

 The centre of the crown was perfectly healthy. 

 It was determined that the tree was diseased at 

 the base of the one spike which was minus its 

 nuts. The spike with its subtending leaf was 

 removed, but no care was taken to disinfect the 

 adjacent portions of the tree. In two wrecks 

 the other spikes began to lose their nuts until 

 the tree had scarcely thirty left. Twenty-one 



1 As quoted by Rorer, who gives the following names 

 and references in his report, as being worthy of study: 

 Earle, Journal New York Botanical Garden, 4, 8, 1903, 

 reprinted in West Indian Bulletin, 4, 6, 1904. Dr. 

 Erwin F. Smith, Science, N.S., 21, 500, 1905. Hinchley 

 Hart, Trinidad Bulletin, 6, 241, 1905. Home, Cuban 

 Agricultural Experiment Station, Bulletin No. 15, 1908. 

 Stockdale, West Indian Bulletin, vol. ix, 36-81, 1909. 

 Fredholm, Proceedings Trinidad Agricultural Society, 9, 

 159, 1909. Johnston, Cuba Review, 6,23, 1908, Bulletin, 

 Department Agriculture, Trinidad, 9, 25, 1910, United 

 States Department Agriculture, Bureau of Plant In- 

 dustry, Circular No. 36, 1909, Phytopathology, i, 97, 1911. 

 Rorer, Bulletin, Trinidad Department Agriculture, 9, 

 22, 1910. Circular No. 2, Board of Agriculture, Trinidad, 

 p. 4, 1911. Butler, Agricultural Research Institute, 

 Pusa, Circular No. 9, 1908. Memoirs of the Depart- 

 ment of Agriculture, India, Botanical Series, vol. iii, 

 No. 5, 1910. 



