(1) Arrange a system of skids in mill yard so logs can be 

 ■unloaded directly from cars or truck to skids. 



(2) Do not pile logs more than two deep. 



(3) Leave space between piles to allow logs to receive the 

 maximum amount of sunlight and ventilation. 



(h) As far as possible, avoid big stacks of logs in the yard 

 waiting to be loaded on cars and taken to mill to be sawed. 



Protection of gre en lumber . 



Moist green lumber sawed dir.* in 2 the summer months should be kiJn- 

 dried when possible; otherwise observe the following procedure: 



(1) Hack lumber 7 to 10 days oefore piling during the summer. 



(2) Cross-rack lumber during the spring and fall to aid rapid dry- 

 ing. 



(3) Pile lumber with flue in center to aid rapid seasoning. (Care 

 must be taken that' it does not check by drying too fast.) 



(4) Cut heavy dimension stuff, as far as possible, during the fall 

 and w in t e r mon t h s . 



(5) End -pile lumber during the winter, if necessary, to hasten 



drying . 



(6) Unless the trade requires it, avoid leaving bark on the edges 

 of lumber sawed from green logs. 



(7) Lumber yards located on flat, low, damp areas, where the water 

 stands after heavy rains, should be drained by a system of trenches. 



E. A. St. George, 



Assistant Entomologist. 



Approved: 



E. C. Craighead, 



Entomologist in Charge of Forest Insect Investigations. 



