Bul. 59, Bureau of Entomology, U. S. Dept. of Agriculture PLATE III. 
PROLIFERATION FROM INTERNAL AND EXTERNAL STIMULATION. 
Fig. 8.—Exterior view of apparently uninjured boll. Fig. 9.—View showing proliferation starting 
on inner side of carpel shown in fig. 8, due to punctures of bugs. Fig. 10.—Proliferation in 
seeds due to punctures of Pentatoma ligata. Fig. 11.—Section of seed proliferating from Penta- 
toma puncture. Fig. 12.—Boll attacked by anthracnose, which incited prolife 
8-11 slightly enlarged; fig. 12 natural size. (Original. ) 
ation Figs. 
