62 BULLETIN 618, U. S. DEPARTMENT OF AGRICULTURE. 



Clark, J. A. 



1914. Cereal experiments at Dickinson, N. Dak. U. S. Dept. Agr. Bui. 33, p. 



14-18. 

 1916. Improvement of Ghirka spring wheat in yield and quality. U. S. Dept. 

 Agr. Bui. 450, 19 p., 7 fig. 

 Clark, V. A. 



1905. Durum wheats. In Ariz. Agr. Exp. Sta. 16th Ann. Rpt. [1904J/05, p. 14. 

 Cole, J. S., and Balz, Sylvester. 



1906. Cereal investigations at Highmore. In S. Dak. Agr. Exp. Sta. Bui. 96, p. 



47-51. 

 Cory, V. L. 



1912. Cooperative grain investigations at McPherson, Kans., 1904-1909. U. S. 



Dept. Agr., Bur. Plant Indus. Bui*. 240, p. 18. 

 Delwiche, E. J., and Leith, B. D. 



1913. Wheat growing in Wisconsin. Wis. Agr. Exp. Sta. Bui. 233, p. 18-22. 

 Donaldson, N. C. 



1916a. Cereal experiments at the Judith Basin substation, Moccasin, Mont. U.S. 



Dept. Agr. Bui. 398, p. 23-26. 

 1916b. Grains for the Montana dry lands. U. S. Dept. Agr., Earmers' Bui. 749, 

 p. 14-15. 

 Fairchild, D. G. 



1903. Saragolla wheat. In U. S. Dept. Agr., Bur. Plant Indus. Bui. 25, p. 9-12. 

 Earrell, F. D. 



1910. Dry-land grains in the Great Basin. U. S. Dept. Agr., Birr. Plant Indus. 

 Circ. 61, p. 11-12. 

 Geismar, L. M., and Smith, C. D. 



1903. Report of the Upper Peninsula substation for the years 1901 and 1902. 



Mich. Agr. Exp. Sta. Spec. Bui. 20, p. 6. 

 Haney, J. G., and Elling, O. H. 



1904. Experiments at Fort Hays Branch Station, 1902-04. Kans. Agr. Exp. 



Sta. Bui. 128, p. 269-270, 294. 

 Harris, F. S., and Ellison, A. D. 



1916. Dry-farming in Utah. Utah Agr. Exp. Sta. Circ. 21, 15 p. 

 and Hogenson, J. C. 



1914. Variety tests of field crops in Utah. Utah Agr. Exp. Sta. Bui. 131, p. 



324-325, 337. 

 Headden, W. P. 



1915-16. A study of Colorado wheat. Part I-II. Colo. Agr. Exp. Sta. Bui. 208, 



p. 33-34, 42-46, 1915; Bui. 217, p. 16-17, 1916. 

 Houston, D. F. 



1917. Official Grain Standards of the United States for wheat. U. S. Dept. 



Agr., Off. Markets and Bur. Org., Serv. Regul. Announc. No. 22, p. 3-4, 

 11-15. 

 Hume, A. N., and Champlin, Manley. 



1913. Some varieties and strains of wheat, and their yields in South Dakota. 

 S. Dak. Agr. Exp. Sta. Bui. 146, p. 270, 277-291. 



Center, O. D., and Hegnauer, Leonard. 



1908. Variety tests of wheat. 111. Agr. Exp. Sta. Bui. 121, p. 75. 

 Champlin, Manley, and Morrison, J. D. 



1915. Winter grain in South Dakota. S. Dak. Agr. Exp. Sta. Bui. 161, p. 234-259. 

 Hunt, T. F. 



1907. The Cereals in America, p. 52-54, 62-63. New York and London. 

 Jardine, W. M. 



1906. Arid farming investigations. Utah Agr. Exp. Sta. Bui. 100, p. 134-138. 



1908. Drydand grains. U. S. Dept. Agr., Bur. Plant Indus. Circ. 12, p. 8-10. 

 Jones, J. W. 



1916. Cereal experiments on the Cheyenne experiment farm, Archer, Wyo. U. S. 



Dept. Agr. Bui. 430, p. 17. 

 Kilgore, B. W., Burgess, J. L., and Meacham, F. T. 



1909. Culture of wheat and oats. In Bui. N. C. Dept. Agr., v. 30, no. 8, p. 23-30. 

 Klippart, J. H. 



1858. An essay on the origin, sjrowth, diseases, varieties, etc., of the wheat plant. 



In 12th Ann. Rpt. Ohio State Bd. Agr. 1857, p. 739, 747. 

 Ladd, E. F. 



1916a. Chemical and physical constants for wheat and mill products. N. Dak. 



Agr. Exp. Sta. Bui. 114, p. 273-297, 9 fig. 

 1916b. North Dakota wheat for 1916. N. Dak. Agr. Exp. Sta. Bui. 119, p. 52-55. 



