FOREST TREES 
nish useful material, but restore health 
and calmness to the forest. 
In connection with the longleaf pines 
of the Southern States, the bull pine 
of the West deserves to be noticed on 
account of its rear botanical relation- 
ship and the somewhat similar economic 
position which it occupies. It is the 
most widely distributed of western 
trees, being found in almost every kind 
of soil and climate along the Pacific 
coast and throughout the Rockies. 
Over so wide a range, growing under 
very different conditions of soil, tem- 
perature, light, and moisture, it varies 
greatly in form and appearance. We 
encounter it on dry, sterile slopes or 
elevated plateaux in the interior, and 
walk for miles through the monotony 
of these dark bull pine forests, in which 
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