Appendix D 363 



1909. WARBURTON, C. W., Improvement of the Oat Crop. \J. S. 

 Dept. Agr. Bur. Plant Ind. Circ. 30 : (10 pp.). 



1909. WAUGH and SHAW, Variation in Peas. Mass. (State) 

 Agr. Exp. Sta. Ann. Rep. 167-173. 



1909. WEBBER, H. J., Improving Corn by Seed Selection. Cor- 

 nell Univ. Reading-Course for Farmers, 42. 



1909. WEBBER, H. J., Methods of Breeding and Improving the 

 Potato Crop. Cornell Univ. Farmers' Reading-Course 

 Bull. 43 : 3 figs. 



1909. WEBBER, H. J., Clonal or Bud Variation. A. B. A. 

 Rep. 5:347-357. 



1909. WEISMANN, AUGUST, The Selection Theory. Darwin and 

 Mod. Sci. pp. 18-65, pi., fig. Bibliog. in notes. 



1909. WESTGATE, J. M., Methods of Breeding Alfalfa by Selec- 

 tion. A. B. A. Rep. 5 : 144-166. 



1909. WESTGATE, J. M., Another Explanation of the Hardiness 

 of Grimm Alfalfa. Science, n.s. 30 : 184-186. 



1909. WHELDALE, (Miss) M., The Colours and Pigments of 

 Flowers, with Special Reference to Genetics. Roy. Soc. 

 London Proc. 81 : 44-60. 



1909. WHELDALE, (Miss) M., Further Observations upon the 

 Inheritance of Flower-colour in Antirrhinum ma jus. Roy. 

 Soc. London Evol. Comm. Rep. 5 : 1-26. Tables. Bib- 

 liog. in notes. 



1909. WILSON, EDMUND B., Studies on Chromosomes V. The 

 Chromosomes of Metapodius. A Contribution to the Hypothesis 

 of the Genetic Continuity of Chromosomes. Jour. Exp. Zool. 

 6 : 147-205, 1 pi. & 13 figs. 



1909. WILSON, EDMUND B., The Cell in Relation to Heredity 

 and Evolution. In Fifty Years of Darwinism, pp. 92- 

 113. 



1909. WOODHEAD, J. W., and DRIERLEY, M. M., Development 

 of the Climbing Habit in Antirrhinum majus. New Phy- 

 tologist, 8 : 284-298, 3 pis. & 5 figs. 



