Bui. 35, U. S. Dept. of Agriculture. 



Plate I. 



Fig. 1.— Ground Cork, from a Barrel of Almeria Grapes, 1912. Fig. 2.— Coarse 

 Granulated Cork, Used in the Season of 1909. Fig. 3.— Fine Granulated 

 Cork, Used in the Season of 1909. Fig. 4.— Cork Waste, 1912. 



(All natural size.) 



