Bui. 933, U. S. Dept. of Agriculture. 



Plate I. 





Fig. I. — Natural Grove of Black Walnut in Decatur County, Ind. 



Fig. 2. — Open Woodlot in Indiana, in which Black Walnut is Char- 

 acteristically Growing in Mixture with Oaks and Other Hardwoods. 

 Some Walnut Trees have Recently Been Cut. 



