SCHEDULE FOR SILVICAL DESCRIPTION. 



Name of tree, scientific, with synonyms, 

 common, with synonyms. 

 Size. Average and maximum. 

 Growth. Rate and persistence; life. 

 Root System. 



Bole. Taper, clear length, etc. 

 Crown. 

 Tolerance. 

 Wood. Strength, hardness, durability. Kiln dry weight in pounds 



per cubic foot. 

 Reproduction. 



1. By Seed, Prolificacy seed years; time of flowering; ripen- 

 ing; fall. 



Seed character, germination percent; vitality. 

 Seed bed, seedlings. 

 2. By coppice, vitality of stocks, etc. 

 Range. Geographical, altitudinal, optimum. 

 Climate. Temperature, precipitation, humidity. 

 Soil. 

 Association. Solitary, grouped, or gregarious. 



Associates. 



General. Commercial importance, technical features, supply. 

 Common enemies. 

 Management recommended. 



LIST OF TREES INCLUDED. 



1. Pinus strobus, White Pine 



2. P. monticola, Western White Pine. 



3. P. resinosa, Red Pine. 



4. P. ponderosa, Bull Pine. 



5. P. contorta, Lodgepole Pine. 



6. P. divaricata, Jack Pine. 



7. Larix laricina, Tamarack. 



8. L. occidentalis, Western Larch. 



9. Picea mariana, Black Spruce. 



10. P. rubens, Red Spruce. 



11. P. canadensis, White Spruce. 



12. P. engelmanni. Engelmann Spruce. 



13. P. sitchensis, Sitka Spruce. 



