324 



AMERICAN FORESTRY 



national safety. Housing of armies is no longer in tents, 

 but in wooden cities. Fighting is in wood-lined trenches, 

 heavy artillery 

 is movable only 

 on quickly con- 

 structed wood- 

 en roads, troops 

 and supplies go 

 over railways 

 requiring mil- 

 lions of ties, 

 and there are 

 countless other 

 places where 

 wood must 

 make possible 

 the organized 

 and compara- 

 tively station- 

 ary war fare 

 which has suc- 

 ceeded the 

 quick move- 

 ment of mobile 

 troops and sup- 

 plies. The air- 

 plane has be- 

 come the most 

 s p e c t a c ular 



single implement of war and can be 

 No other material gives strength 



Committee on Public Information 



THIS DONKEY ENGINE IS THE LARGEST IN THE WOULD 



And it is valiantly doing its bit, operated by lumbermen in khaki of the "Spruce Regiment" 

 working day and night to turn out the lumber for our great fleet of fliers. 



built only of wood. 



and lightness for 

 frames, or re- 

 sists the ten- 

 sion upon rap- 

 idly-revolving 

 propellers. 

 Finally, to 

 bridge the seas 

 that these 

 things may be 

 accomplished, 

 the wooden 

 ship has come 

 into its own 

 again and is 

 being launched 

 in every port. 



Out of these 

 necessities has 

 grown a new 

 and unfamiliar 

 arm of mili- 

 t a r y s ervice 

 a b r o a d the 

 forest troops 

 sent first to 

 Canada to con- 

 vert the forests 



Underwood and Underwood 



A CAMP IN THE SPRUCE FORESTS 



This is a fine panoramic photograph of a typical logging camp in the forests of the Northwest, 



the spruce to be used in airplane construction. 



where soldier-lumbermen are busily cutting 



