Survey. For the national forest portions, Forest 
Service timber-cover data were consulted. 
The key for the identification of Alaska trees is in- 
tended to bring out certain features wherein species or 
groups of species differ from each other. Descriptions 
of individual trees contained in the text itself show for 
each species the one or two outstanding characteristics 
by which it can almost invariably be identified. 
No thorough-going study has ever been made of the 
Alaska habits of many of the trees, and no claim is made 
to a complete or perfect presentation here of range or 
habitat preference. It will be appreciated if those 
using this booklet will report corrections, particularly 
regarding range of trees, to the Forest Service at Juneau, 
Alaska. 
Grateful acknowledgment is made to J. P. Anderson 
of Juneau, for criticism and correction of the manu, 
script, and to L. J. Palmer, of College, Alaska, for cor- 
rection of the tree-range map and for other assistance. 
3 
