280 Inheritance of Glione LengtJt and of Colour in Oats 



Fig. 9. Portion of transverse section of a purple grain showing pericarp and adjacent 

 tissues. X 190. 

 ^? = aleurone. iS;* = epicarp. c; = girdle cells. il/ = mesoderm and hypoilerm. 

 P = perisperm. .S' = spermoderm. T = tube cells. 

 Fig. 10. Superficial view of girdle cells in part overlaid by epiearp and mesocarp after 

 removal of the underlying tissues, x 190. 

 X= False sap tints, — tannin yellow, dark reddish brown, and pink. 

 A' = Colour content of an extremely minute streak. 



LITERATURE. 



BiFFEN, R. H., 1905. Mendel's Laws of Inheritance and Wheat Breeding. 



Jouriial of Agriaihural Science, Vol. I. pp. 36, 37. 

 East, E. M. and Hates, H. K., 1911. Inheritance in Maize. Connecticut 



Agricultural Experiment Station Bulletin, No. 167, pp. 57 — 10-1. 



