BIBLIOGRAPHY. 



x Alwood. Virginia Agricultural Experiment Station Bulletin 17. pp. 59, 62. 

 1892. 



2 Kinney. Rhode Island Agricultural Experiment Station Report .17 (1894), 

 pp. 188-189. 1S95. 



3 Stewart. New York Agricultural Experiment Station Report 14 (1895), pp. 

 545-546.- 1S96. 



4 Alwood. American Association for the Advancement of Science, Proceed- 

 ings, vol. 47, p. 413. 1S9S. 



5 Lamson. New Hampshire Agricultural Experiment Station Bulletin 65, pp. 

 106-107. 1899. 



6 Corbett. West Virginia Agricultural Experiment Station Bulletin 66, pp. 

 202-204. 1900. 



7 Stewart and Eustace. Xew York Agricultural Experiment Station Bulletin 

 220, pp. 225-233. 1902. 



s Clinton. Illinois Agricultural Experiment Station Bulletin 69, pp. 192-193. 

 1902. 



9 Clinton. Connecticut Agricultural Experiment Station Beport, 1903, p. 29S. 

 1903. 



10 Massachusetts (Hatch) Agricultural Experiment Station Report 15, pp. 

 32-34. 1903. 



11 Sheldon. Torreya, vol. 7, pp. 142-143. July, 1907. 



12 Saccardo. Michelia, vol. 1, p. 134. 1S7S. 



13 Alwood. Virginia Agricultural Experiment Station Bulletin 17, p. 64. 1892. 



14 Scott. Bureau of Plant Industry, United States Department of Agriculture, 

 Bulletin 93, p. 27. 1906. 



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