196 



WOOD AND FOREST. 



THE PRINCIPAL SPECIES OF WOODS. 



REFERENCES : * 



Sargent, Jesup Collection. 



Sargent, Manual. 



Britton. 



Roth, Timber. 



Hough, Handbook. 



Keeler. 



Apgar. 



Mohr. For. Bull., No. 22. 



Fernow, Forestry Investigations. 



Lumber Trade Journals. 



Baterden. 



Sargent, Silva. 



Sargent, Forest Trees, 10th Census, 



Vol. IX. 

 Boulger. 



Hough, American Woods. 

 Snow. 



Lounsberry. 



Spaulding. For. Butt. No. 13. 

 Sudworth. For Bull No 17. 



Forest Service Records of Wholesale Prices of Lumber, List. A. 



For particular trees consult For. Serv., Bulletins and Circulars. See 

 For. Service Classified List of Publications. 



For general bibliography, see p. 4. 



