Bui. 86, Forest Service, U. S. Dept. of Agriculture. 



PLATE XV. 



FIQ. 1. EFFECT OF WINDBREAK PROTECTION ON QUALITY OF CORN. 



1, In rows shaded by trees; -7, Average maximum ears from protected rows; 8, Ears from 

 unprotected portion of field. 



FIQ. 2. EFFECT OF FAVORABLE ATMOSPHERIC CONDITIONS ON GROWTH OF CORN 

 PLANTS AND YIELD OF FODDER. 



On right, in protected zone (weight, 81 pounds); on left, in unprotected zone (weight, 42 pounds) 



