rs 
GOVERNMENT FOREST WORK 45 
in forest management. Their object is to bring pro- 
duction and consumption into the most advantageous 
adjustment, from the standpoint of the public welfare, 
through study on the one hand of the raw material 
that the forests produce and on the other hand of the 
requirements of our industries and their processes of 
manufacture. | 
The bulk of this work on forest products is centered 
at the Forest Products Laboratory at Madison, Wis., 
maintained in cooperation with the University of Wis- 
F-245020 
FIGURE 23.—Testing the strength of structural timber at 
the Forest Products Laboratory, Madison, Wis. 
consin. Here intensive studies are made of the 
physical, mechanical, and chemical properties of wood 
and wood products. These include tests of the 
strength of practically all North American woods of 
commercial importance, studies in seasoning and kiln 
drying, wood preservation, the manufacture of paper 
pulp, fiber board, and the like, and the production of 
alcohol, turpentine, rosin, tar, and other chemical 
products. (Fig. 23.) 
