50 BULLETIN 1111, U. S. DEPARTMENT OF AGRICULTURE. 
Extension of cotton production in California. By O. F. Cook. U. S. Dept. 
of Agriculture Bulletin No. 533. Issued March 3, 1917. 
Production of American Egyptian cotton. By C. S. Scofleld, T. H. Kearney, 
C. J. Brand, O. F. Cook, and W. T. Swingle. U. S. Dept. of Agriculture Bul- 
letin No. 742. Issued January 15, 1919. 
Cotton improvement under weevil conditions. By O. F. Cook. U. S. Dept. 
of Agriculture. Farmers' Bulletin 501 (revised edition). Issued October, 1920. 
Cotton a community crop. By O. F. Cook. Journal of Heredity. Issued 
April, 1920. 
Commercial parasitism in the cotton industry. By O. F. Cook. Nature 
(London). Issued July 1, 1920. pp. 54S-549. 
Community cotton improvement in North Carolina. By R. Y. Winters. S. W. 
Hill, and P. H. Kime. North Carolina Agricultural Extension Service Circular 
108. Issued September, 1920. 
Your community's cotton reputation. How some communities are building 
good cotton names and capitalizing them. By F. H. Jeter. The Progressive 
Farmer. Issued January 29, 1921. p. 130. 
The cotton variety problem. By J. S. Cates. The Country Gentleman 
Issued March 5, 1921. 
Adelanto en el cultivo del algodon. By O. F. Cook. Boletin de la Union 
Pan Americana. Issued March, 1921, pp. 273-294. 
City and country. By O. F. Cook. The Journal of Heredity. Issued March 
and April, 1921. 
Improvements in cotton production. By O. F. Cook. U. S. Dept. of Agri- 
culture Circular 200. Issued November, 1921. 
Cotton-seed mixing increased by modern gin equipment. By W. W. Ballard 
and C. B. Doyle. United States Department of Agriculture Circular 205. 
Issued February 17, 1922. 
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