Canadian Forestry Journal, July^ ipi6. 



635 



the bark by one of the following 

 methods : 



1. Put the logs in water in the 

 early spring and leave them im- 

 mersed long enough to kil the brods. 



2. Saw the infested logfs during- 

 winter and burn the slabs' before 

 spring. 



3. If the infested trees cannot be 

 logged with profit, but control of a 

 beetle outbreak is necessary, the in- 

 fested trees may be felled and the 

 bark removed from the main trunk 

 and burned if necessary, or the bark 

 may be removed by barking tools 

 from as much of the lower trunk as 

 can be reached making particular 

 effort to so treat the large and heav- 

 ily infested trees. 



The Case of Red-fops. 



The old red-tops, killed the pre- 

 ceding or in previous years are 

 never reinfested by the injurious 

 species and are of no importance in 

 the bark-beetle control ; beetle killed 

 trees and fire killed trees should be 

 utilized the first winter following 

 their death if the trees can be logged 

 profitably, otherwise the timber will 

 be greatly reduced in value or de- 

 stroyed by boring grubs. 



The slash from cutting should be 

 burned between October and Mav. 

 This alone will do much to check 

 the increase of injurious insects in 

 the limits. Many more or less in- 

 jurious species as well as the more 

 destructive species are found in the 

 bark of tops, culls and slumps in im- 

 mense numbers. If the slash from 

 the winter's cut is piled and left to 

 be burned during the following 

 winter season, it will serve as a trap 

 and on a valuable limit the saving in 

 loss from insect injuries should alone 

 repay the cost of piling and burning 



Injuries lo Stored Products. 

 Camps made of unbarked logs are 

 frequently infested by boring grubs. 

 Building lumber on which part of 

 the sapwood and bark have been left 

 is sometimes found to be infested 

 with boring grubs long after the 

 building has been erected ; in such 

 dry wood the life time of the grubs 

 is extended often to an extraordinary 

 degree. Logs that are to be used in 

 the unbarked condition for building 

 purposes should be cut in the fall 

 and piled loosely ofif the ground so 

 that the inner bark mav become well 

 dried before the foflowing June. 

 Green lumber, bearing sap-wood 

 and bark, should be avoided for 

 building purposes. 



Woods used for interior finish and 

 for implements such as spokes of 

 wheels and axe handles, are some- 

 times badly injured by powder post 

 beetles. Such injurie's have been 

 apparently rare in Canada in recent 

 vears. 



First Aid Instruction to Camps 



Dr. M. J. Shields, of Washington, 

 D. C, field agent of the first division 

 of the American Red Cross, has be 

 gun his campaign of safetv first and 

 first aid in the mills and logging 

 camps of Oregon. This work ^will 

 be along the lines carried on in the 

 State of Washington during the 

 past year where 100 camps have 

 been visited and 8.000 lumber work- 

 ers instructed in first aid. 



This work in A\'ashington has not 

 only been the means of preventing a 

 great number of accidents, but it has 

 forestalled innumerable cases of in- 

 fection and blood poisoning. Lives 

 and hmbs have been saved by men 

 mstructed in first aid work being 

 on the spot when the accident hap- 

 pened with a knowledge and ma- 

 terial for rendering efficient and 

 prompt first aid. 



