Bul. 820, U. S. Dept. of Agriculture. PLATE VI. 
F—34752A 
Fig. |.—TYPICAL JACK PINE PLAIN OF VERY SANDY SOIL. 
F-75101 
Fic. 2.—TYPICAL GROWTH OF JACK PINE ON JACK PINE PLAINS IN MICHIGAN. 
STAND DENSE IN SPOTS AND OPEN IN OTHERS. 
