] 56 University of California Piihlications in Botany [Vol. 5 



Shull, G. H. 



1908 (a). The pedigreed cultm-e. The Plant World, vol. 2, p. 21. 

 1908 (b). a new Mendelian ratio and several types of latency. 

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vol. 43, no. 511. July. 



Stockberger. 



1912. A literary note on Mendel 's law. Amer. Nat., vol. 46, no. 543, 



p. 152. 



Strasburger, Noll, Schexck and Karsten. 



1908. A Textbook of Botany, Macmillan, London. 



Webber, H. J. an.l Boykix, E. B. 



1907. The advantage of planting heavy cotton seed. U. S. D. A., 

 Farmer's Bull. 285. 



Waujrox, L. R. 



1910. A suggestion regarding heavy and light seed grain. The Amer- 



ican Naturalist, vol. 44, p. 48. 



WOLLNY, E. 



1885. Saat und Pflege der Landwirtschaftlichen Kulturpflanzen. 



The greater portion of the references noted in the bibliographies 

 appended in Bateson (1909) and Baur (1911) have been examined. 



