222 SCIENCE REMAKING THE WORLD 



field of forestry. The statistical material is somewhat out of date. 



"Timber Mine, or Crop?" 1922 Yearbook article. A compre- 

 hensive, non-technical presentation of the importance of growing 

 timber as a crop treated from a national economic standpoint. 



"Forests and Forestry in the United States." Report prepared 

 by the U. S. Forest Service for the Brazilian Exposition Commission, 

 1923, Forest Service, Washington, D. C. A popular statement of 

 the progress of forestry in the United States, with special reference 

 ftO the National Forests. 



