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1909. ROSENBERG, 0., Uber die Chromosomenzahlen bei Taraxa- 

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 1909. Roux, G., Les problemes de I'heredite. La Revue (Oct. 



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 1909. RUSSEL, E. S., The Transmission of Acquired Characters. 



Rivista di Scienza, 5: 192-203. 

 1909. SANDSTEN," E. P., Improvement of Wisconsin Tobacco 



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 1909. SAUER, L. W., Quercus Leana; a Hybrid Oak. Plant 



World, 12: 198-201, figs. 1-2. 

 1909. SAXTON, W. T., Parthenogenesis in Pinus Pinaster. 



Bot. Gaz. 47 : 406-409, figs. 1-7. 

 1909. SEYOT, P. M., Etude biometrique des pepins d'un Vitis 



vinifera franc de pied et greffe. Acad. Sci. (Paris) Compt. 



Rend. 149 : 53-56. 

 1909. SHOEMAKER, D. N., Report of the Committee on Breeding 



Cotton. A. B. A. Rep. 5: 115-116. 

 1909. SHULL, G. H., A Simple Chemical Device to Illustrate 



Mendelian Inheritance. Plant World, 12 : 145-152. Illus. 

 1909. SMITH, J. RUSSELL, Elimination of the Gullied Hillside 



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in notes. 



1909. SPILLMAN, W. J., The Effect of Different Methods of Selec- 

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 1909. STEVENS, F. L., and HALL, J. G., Variation of Fungi 



Due to Environment. Bot. Gaz. 48 : 1-30, figs. 1-37. 

 1909. STRAUGIN, M. N., and CHURCH, C. G., The Influence of 



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U. S. Dept. Agr. Bur. Chemistry Bull. 127 : (69 pp.), 11 figs. 



