. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. TIMBER STORAGE IN THE EASTERN AND SOUTHERN STATES. 13 the air to infect whatever sound lumber may be in the vicinity. The writer has seen scores of instances where small piles of rotting debris have been scattered about lumberyards and even at times piled di- rectly against sound lumber (fig. 10). Very frequently this debris consists of old ties (fig. 11) or timbers from the tramway platforms. In other cases it may be yard stock which has rotted in storage and has been left in situ o
. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. TIMBER STORAGE IN THE EASTERN AND SOUTHERN STATES. 13 the air to infect whatever sound lumber may be in the vicinity. The writer has seen scores of instances where small piles of rotting debris have been scattered about lumberyards and even at times piled di- rectly against sound lumber (fig. 10). Very frequently this debris consists of old ties (fig. 11) or timbers from the tramway platforms. In other cases it may be yard stock which has rotted in storage and has been left in situ or carted a few rods and discarded just beyond the confines of the yard. One such mill yard was visited where several hundred thousand feet of pine and hardwood lum- ber had been thrown into an adjoining rice swamp in close prox- imity to and extend- ing for nearly a mile along a row of lum- ber stacks (see fig. 9). In this same yard it was also commonly noted that sound lumber fresh from the saw was piled upon the bases of old lumber piles which were thoroughly rot- ted (fig. 12). Also in this yard, as well as in a yard in Mississippi, vines were allowed to grow up over some of the lumber piles (fig. 13). This is, of course, highly objectionable, since such vegetation tends to collect moisture and impedes venti- lation. Such conditions as these are bound to be a serious menace to the effective storage of Fig. 9.—Pine and hardwood lumber which has rotted in storage in the yard shown in figure 11. Instead of burn- ing the debris it was thrown into an adjoining rice swamp. Fungi developing on this debris will again infect the sound lumber. TRAMWAYS AND RAILWAYS. Practically all sawmills have a more or less extensive tramway or railway system for the distribution of lumber from the mill to the yard and other units of the plant (fig. 14). It is quite the uni- versal condition that these structures harbor multitudes of various. Please note that these images are extracted f
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