Bul. 820, U. S. Dept. of Agriculture. PLATE III. 
F-61393 
Fia. 1.—TYPICAL OCCURRENCE OF JACK PINE IN MIXTURE WITH NORWAY AND 
WHITE PINE AND SCRUBBY SCARLET OAK ON EDGE OF PLAINS TYPE. 
F-60914 
FIG. 2.—YOUNG STAND OF JACK PINE AND THE OLD SEED TREES WHICH 
PRODUCED IT. 
