Bui. 299, U. S. Dept.-of Agriculture, 
Plate XVI. 
Fig. 1.— Before thinning, crowns were crowded. 
Fig 2 -After thinning, crowns were free. Crowns should be at least this distance 
apart after thinning to secure good development of the trees lett. 
LOOKING UP INTO THE CROWNS OF A TWENTY-YEAR-OLD 
WHITE ASH STAND. 
