Bui. 36, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



PLATE X. 



FIG. 1. SECTION TAKEN 35 FEET FROM THE GROUND FROM A DEAD TREE. 



FIQ. 2. SECTION SHOWING MORE ADVANCED STAGE FIG. 3. SECTION FROM TREE SHOWN IN 



OF DECAY. FIG. 2, MADE 15 FEET HIGHER UP. 



EARLY STAGES OF "RED ROT." 



