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883 
LITERATURE CITED 
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1916. the pruning-manual. 407 p., illus. New York. 
(2) Chamberlain, C. J. 
1915. methods in plant histology. Ed. 3, 314 p., illus. Chicago. 
(3) Drinkard, A. W. 
1911. fruit-bud formation and development. Va. Agr. Exp. Sta. 
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(5) -Bradford, F. C., and Hooker, H. D. 
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(9) Kirby, R. S. 
1918. A STUDY OF THE FORMATION AND DEVELOPMENT OF THE FLOWER 
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