52 



BULLETIN 343, U. S. DEPABTMENT OF AGEICULTLTRE. 



which accompany this 

 were in various stages 

 which might materially 



1. Alpine fir. 



2. White spruce. 



3. Engelmann spruce. 



4. Black gum. 



5. Lowland fir. 



6. Montana lodgepole pine. 



7. Loblolly pine (fall cut). 



8. White pine. 



9. Balsam fir. 



10. White fir (young wood). 



11. Western yellow pine. 



12. California lodgepole pine. 



13. Amabilis fir. 



bulletin, and also that the different woods 

 of seasoning when ground into pulp, a fact 

 influence their relative color rating: 



14. Jack pine. 



15 . White fir (old and young trees mixed) . 



16. Noble fir. 



17. Loblolly pine (spring cut). 



18. Aspen. 



19. White birch. 



20. Sitka spruce. 



21. Eastern hemlock. 



22. Bed fir. 



23. Tamarack. 



24. Western hemlock. 



25. Larcb. 



Fig. 40. — Sitka spruce (Picea sitchensis). 



White, Alpine, amabilis, and balsam fir are light in color, comparing 

 very favorably in this respect with whi^e spruce. Red fir and noble 



