Bul. 308, U. S. Dept. of Agriculture. 
| Plate V. 
F-13222A 
Fia. 1.—ENCROACHMENT OF SHORTLEAF ON SUCCESSIVELY ABANDONED PORTIONS OF 
COTTON FIELD. STANDS OF SIX DIFFERENT AGES. 
Fic. 2.—VERY DENSE STAND OF 9-YEAR-OLD SEEDLINGS, 42,000 TREES PER ACRE. 
NOTE CLOSE RELATION BETWEEN DENSITY AND DEVELOPMENT. 
SHORTLEAF ENCROACHING UPON FIELDS UNDER CULTIVATION. 
