Bul. 153, U. S. Dept. of Agriculture. 
3 
an 4 ‘he SP oe, 
wh ne BF Ti 
Fic. 2.—MIXED PLANTATION OF OAK, ASH, ELM, AND MAPLE, INDIANA, 
15 YEARS OLD, USED AS A WINDBREAK. 
» CENTRAL IOWA, 37 YEARS OLD, 
WHITE PINE GRowS WELL HERE. 
Fig. 1.—WHITE PINE PLANTATION 
SPACED 8 By 9 FEET, 
