Bui. 273 Bureau of ~ a-: -:-;:-, U. S. Dept. c- Ag- cj :jre 



Plate 



Fig. 1.— Beds Used in the Shade Experiments at Baton Rouge, La.: Bed A at 

 the Right; B at the Left. The Long Dimension of each Bed is East and 

 West. 



Fig. 2.— Reproductions from Photographic Prints, Showing the Texture of 

 the Cloths Used on Sections 1 to 5 and Indicating the Relative Light 

 Penetration. 



