Appendix A 309 



1915. BESSET, E. A., and BYARS, L. P. "The Control of Root- 



knot." U. S. Dept. of Agr., Farmers' Bui. No. 648. 



HARRIS, F. S. "Effect of Alkali Salts in the Soil on the 

 Germination and Growth of Crops." Jour. Agr. Res., 

 Vol. 5, pp. 1-53 (Oct. 4, 1915). 



TOWNSEND, C. 0. "Field Studies of the Crown-gall 

 of Sugar Beets." U. S. Dept. of Agr., Bui. No. 

 203. 



MILLIKEN, F. B. "Grasshoppers and then* Control on 

 Sugar Beet and Truck Crops." U. S. Dept. of Agr., 

 Farmers' Bui. No. 691. 



SHAW, H. B. "Sugar Beets: Preventable Losses in Cul- 

 ture." U. S. Dept. of Agr., Bui. No. 238. 



INCE, J. W. "Progress Report of Sugar Beet Trials." 

 N. D. Sta. Bui. No. 113. 



SHAW, H. B. "Loss in Tonnage of Sugar Beets by Dry- 

 ing." U. S. Dept. of Agr., Bui. No. 199. 



HARTUNG, W. J., and SEVERIN, H. H. P. "Natural Ene- 

 mies of the Sugar-beet Leafhoppers in California." 

 Monthly Bui., Cal. Com. Hort., IV, pp. 277-280. 



EDSON, H. A. " Histological Relations of Sugar-beet 

 Seedlings and Phoma betae." Jour. Agr. Res., Vol. 5, 

 pp. 55-58 (Oct. 4, 1915). 



POOL, V. W., and McKAT, M. B. "Phoma betae on the 

 Leaves of the Sugar Beet." Jour. Agr. Res., Vol. 4, 

 pp. 169-177 (May 14, 1915). 



1916. PRITCHARD, F. J. " Some Recent Investigations in Sugar 



Beet Breeding." Bot. Gaz., Vol. 41, No. 6, pp. 425- 



465 (Dec., 1916). 

 PRITCHARD, F. J., and LONGLT, L. E. "Experiments in 



Transplanting Sugar Beets." Jour. Am. Soc. Agron., 



Vol. 8, No. 2, pp. 106-110. 

 SHAW, H. B. " Control of the Sugar-beet Nematode. 1 ; 



U. S. Dept. of Agr., Farmers' Bui. No. 772. 

 POOL, V. W., and McKAY, M. B. " Relation of Stomatal 



Movement to Infection by Cercospora beticola." 



Jour. Agr. Res., Vol. 5, pp. 1011-1038 (Feb. 28, 



1916). 

 POOL, V. W., and McKAY, M. B. "Climatic Conditions 



as Related to Cercospora beticola." Jour. Agr. Res., 



Vol. 6, pp. 21-60 (Apr. 3, 1916). 



