PREFACE. 



This is a book on elementary forestry, and has been pre- 

 pared especially for students and others beginning this sub- 

 ject. It is also intended for the general reader who wishes 

 to secure a general idea of the subject of forestry in North 

 America. 



Much of the matter included herein was originally pub- 

 lished by the Geological and National History Survey of 

 Minnesota under the title ''Forestry in Minnesota." The 

 favor with which that work was received has encouraged 

 the publishers to get out this volume, in which the matter is 

 treated in a more general way and enlarged to better adapt 

 it to the whole country. 



Samuel B. Green. 

 University of Minnesota, 

 St. Anthony Park, Minn., April, 1903. 



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