298 Botanisches Centralblatt. 



Demaree, F. H. 1910. Wheat Growing in Missouri. (Circ. 43, Agr. 



Exp. Stat. Columbia, Mo. 1910. p. 65—68, 1 f.) 

 Derr, H. B. 1911. Barley: Growing the Crop. (Farmers' Bull. 443, 



Dep. Agr. Wash., D. C. 1911. 48 pp. 17 f.) 

 Derr, H. B. 1910. The Separation oi" Seed Barley by the Specific 



Gravity Method. (Circ. 62, Bur. Plant Ind. U. S. Dep. Agr. Wash., 



D. C. 1910. 6 pp. 1 f.) 

 Dewey, L. H. 1910. The Cultivation of Hemp in the United States. 



(Circ. 57, Bur. Plant Ind. U. S. Dep. Agr. Wash., D. C, 1910. 7 pp. 1 f.) 

 Dickens, A. 1910. Report of State Forester upon Forest Conditions 



in Central and Western Kansas. (Bull. 165, Agr. Exp. Stat. Man- 

 hattan, Kans., 1910. p. 293-356, 37 pl.) 

 Drake, J. A. 1911. The Management of Clover in Com Belt Rota- 

 tions. (Circ. 111, Agr. Exp. Stat. Wooster, Ohio, 1911. 20 pp. 4 f.) 

 Duggar, J. F. and E. F. Cauthen. 1930. Tests of Varieties of Cot- 



ton in 1909. (Bull. 149, Agr. Exp. Stat. Auburn, Ala. 1910. 8 pp.) 

 Duggar, J. F. and E. F. Cauthen. 1911. Experiments with Cotton. 



(Bull. 153, Agr. Exp. Stat. Auburn, Ala. 1911. 40 pp. 6 1.) 

 Eustace, H. J. 1911. Winter Vetch for a Cover Crop in Michigan 



Orchards. [Vicia villosaj. (Circ. 13, Agr. Exp. Stat. East Lansing, 



Mich. 4 pp. 4 f.) 

 Evans, M. W. 1911. Field Pea Production in Washington. (Bull. 



99, Agr. Exp Stat. Pullman, Wash., 1911. 22 pp. 4 f.) 

 Ewing, E. C. 1910. Correlation of Characters in Com. (Bull. 287, 



Cornell Univ. Agr. Exp. Stat. lthaca, N. Y., 1910. p. 65—100, 



2 f. 12 t.) 

 Francis, C. K. and R. O. Baird. 1910. A Study of Bermuda 



Grass. (Bull. 90, Agr. Exp. Stat. Stillwater, Okla. 1910. 20 pp. 5 f.) 



[Bermuda Grass, Capriola Dactylon (Cynodon Dactylon). Brief 



account of life history, composition, cultivation, chemical analysis, 



and utilization of Bermuda Grass]. 

 Fruwirth, C. 1912. Die Züchtung der landwirtschaftlichen Kultur- 

 pflanzen. Bd. V. Die Züchtung kolonialer Gewächse. (Berlin, P. 



Parey. 1912. 8°. XIX, 184 pp. ill. Preis 10 Mk.] 

 Garcia, F. 1910. Apple Culture under Irrigation. (Bull. 75, N. 



Mexico Agr. Exp. Stat. 1910. 46 pp. 14 f.) 

 Garcia, F. 1910. Onion Tests. (Bull. 74, New Mexico Agr. Exp. 



Stat. 1910. 24 pp. 6 f.) 

 Garcia, F. and J. E. Mundeil. 1911. Peach Experiments 1906 — 10. 



(Bull. 76, New Mexico Agr. Exp. Stat. 1911. 42 pp. 10 f.) 

 Gardner, F. D. and J. A. Runk. 1911. Variety Tests of Oats. 



(Bull. 108, Agr. Exp. Stat. State College, Pa. 1911. 14 pp.) 

 Garner, W. W. 1910. The Present Status of the Tobacco Industry. 



(Circ. 48, Bur. Plant Ind. U. S. Dep. Agr. Wash., D. C, 1910. 13 pp.) 

 Garola, C. V. 1912. Prairies et Plantes fourageres. 3. ed. (Paris 



1912. 80. 568 pp. 191 f.) 

 Geze, J. B. 1911. Experiences de culture et de selection de Plantes 



de marais faites en 1908 et 1909. (Ann. Minist. Agr. Paris. 1911. 



8°. 23 pp. 1 pl.) 

 Gossard, H. A. 1911. Commercial Apple Orcharding in Ohio. (Circ. 



112, Agr. Exp. Stat. Wooster, Ohio, 16 pp. 13 f.j 

 Gould, H. P. 1910. Fruit Growing for Home Use in the Central 

 and Southern Great Plains. (Circ. 51, Bur. Plant Ind. U. S. Dep. 

 Agr. Wash., D. C. 1910. 23 pp. 5 f.) 

 Graham, W. A. 1910. Winter and Spring Work in Selectmg Seed 

 Com. (N. Carolina Dep. Agr. Raleigh, N. C. XXXI. 10 pp. 3 f.) 



