126 SOUTHERN FIELD CBOPS 



Literature 



DuGGAR, J. F. Ala. Expr. Sta., Buls. Nos. Ill and 134. 



Williams, C. B. N. C. Expr. Sta., Bui. No. 204. 



KiLGOBE, J. B., and others. N. C. Board Agr., Bui. Vol. 29, No. 



2, and later. 

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59. 



