﻿Bui. 24, U. S. Dept of Agriculture. 



Plate VI. 



Fig. 1.— German Plantation of Cottonwood 5 Years Old, Showing Wide 

 Spacing, 12 Feet by 15 Feet, and Result of Heavy Pruning. 



Fig. 2.— American Plantation of Cottonwood 4 Years Old, Closely 

 Spaced, 4.5 Feet by 9 Feet, and in Need of Thinning. 



