SAP-STAIlsT, MOLD, AND DECAY IE" GREEN WOOD. 



25 



on well-drained soil free from weeds and one which will allow the 

 prevailing winds to blow through the sides rather than upon the ends 

 of the stacks. 



Care should be taken to provide suitable foundations consisting of 

 metal or well-seasoned heart stock, preferably creosoted and resting 

 upon piers of creosoted wood or, better, of stone, brick, concrete, or 

 metal. All foundations should be sufficiently high to allow for 

 ventilation vertically through the stacks. Moreover, there should be 

 ample space between 

 the stacks to permit 

 a free circulation of 

 the air around them. 

 Finally, it is impor- 

 tant that narrow 

 strips, perhaps 1 inch 

 wide and at least 1 

 inch thick, of well- 

 seasoned, kiln-dried, 

 or chemically treated 

 wood be used between 

 all courses and that 

 they be carefully 

 placed in vertical 

 alignment to prevent 

 warping of the 

 stock. ^® 



HANDLING AT THE MILL. 



EAELY MANUFACTURE. 



Fig. 6. — Bolts piled in a l30x car. Note the dSbris on the 

 floor of the car. Bolts are likely to suffer from fungous 

 attacks when shipped in box cars with the doors closed. 



Logs, bolts, and 

 split billets should be 

 sawed into dimension 

 stock or planks and 

 manufactured as soon as possible. This will do much toward safe- 

 guarding the material by reducing the time in storage. 



AIB SEASONING. 



Provided kilns are not available, the dimension stock should be 

 seasoned from six months to a year or more, depending upon the 



I'The general sanitation of lumber yards and the proper methods to be observed in 

 the piling of timber to prevent or reduce losses in storage due to fungi, together with a 

 consideration of the more common rot-producing organisms, are clearly described by 

 Humphrey (22), in Bulletin No. 510, United States Department of Agriculture. Copies 

 may be obtained from the Superintendent of Documents, Government Printing Ofiice, 

 Washington, D. C, at 20 cents per copy. 



75579°— 22 4 



