94 



tive. The four trees of normal behavior set a fair crop of fruit, 

 while only a single fruit was produced by the latter four. 



Literature cited 



1. Robinson, T. Ralph and Savage, E. M. Pollination of the 

 avocado. U. S. Dept. Agric. Circular 387, p. 1-16. 1926. 



2. Stout, A. B. A study of cross-pollination of avocados in 

 southern California. Ann. Rept. California Avocado Assoc. 1922- 

 1923 : 29-45. 1923. 



3. . The flower behavior of avocados. Mem. New York 



Bot. Card. 7 : 145-203. 1927. 



4. Wright, H. Foliar periodicity of endemic and indigenous 

 trees in Ceylon. Ann. Roy. Bot. Gard. Perideniya 2 : 415-516. 1905. 



Baltimore, Maryland 



