REVIEWS 65 



each on a separate line, the relative humidity is indicated at the point 

 where the edge crosses a third line. 



The author very fittingly states that grading rules for lumher should 

 contain specifications for moisture content and amount of case harden- 

 ing permitted. These conditions, he points out, are far more important 

 in lumber utilization than some of the comparatively insignificant 

 details concerning knots, checks, wane, etc., usually mentioned in grad- 

 ing rules. He even suggests that the Forests Department might inspect 

 lumber for moisture content and case hardening and issue a certificate 

 of inspection. 



A debt of gratitude to timber physicists for their researches is 

 expressed, special mention being made of Mr. Tieman and the Forest 

 Products Laboratory. A. K. 



Report of the Forester, Fiscal Year Funded June jO, iQiQ. By Henry 

 S. Graves, Forester, U. S. Department of Agriculture. 



The noteworthy achievement of the Forest Service during the war 

 was the co-operative work undertaken chiefly by the Forest Products 

 Laboratory at Madison, Wisconsin. Valuable co-operative assistance 

 was given the Navy and War Departments and private industries in the 

 solution of problems connected with airplane construction, artillery 

 wheels, ship building, charcoal, and especially in the rapid kiln drying 

 of all kinds of wood so urgently required for the war. All the more 

 credit is due the Forest Service when it is realized that many of its 

 officials had enlisted for active service. Moreover, much of this work 

 was done by patriotic young men who received less salary than the 

 ordinary munitions worker, and probably less than half the salary that 

 is today paid to skilled mechanics. Since the armistice, it must have 

 been no slight task to unscramble the organization that had been welded 

 together for war work. The European countries had made the blimder 

 of using up many technical experts sim{)ly because they were young 

 enough for "cannon fodfler" and because these young men refused to 

 stomach the idea of remaining at home while older men were being 

 killed. Modern warfare demands heroism, but most of all technical 

 skill, and unquestionably the Forest vService followed the right policy 

 by refusing to allow its research experts to enlist. 



Colonel Graves officially announces "a new movement for extending 

 the practice of forestry."' and speaks of forestry as having Ijecome 

 "something wiiich a lousiness man could grasp and weigh on its merits 

 as a definite business proposal," yet in the same report (page ")), under 



