THE TIMBERS OF COMMERCE 



Sources of Supply. Europe in the Mediterranean Region. 

 Cultivated in many lands. 



Physical Characters, etc. Recorded dry-weight 26-48! Ibs. per 

 cu. ft. Hardness Grade 7, compare Birch. Smell none when 

 dry : terebinthine when green. Taste flat. Burns very well 

 without smell, a lively flame: embers glow in still air. Solution 

 colourless or nearly so. 



Grain. Smooth, even and fine. Surface slightly frosted, 

 easily soiled. 



Bark. " Like that of the Scots Fir, fissured : formed of thin 

 whitish layers which separate in the form of scales. An inner 

 layer becomes transformed into hard dry cork of a clear ochreous- 

 red colour " (69). 



Uses, etc. " Packing-cases, fuel, carpentry " (60). Pit-props. 

 Usually confused with the wood of Pinus pinaster, the Cluster 

 Pine and also with many other Coniferous woods. 



Authorities. Nordlinger (86), vol. iii. p. 12. Laslett (60), 

 p. 349. Petsche (92), p. 109. Mathieu (69), p. 622. 



Colour and Anatomical Characters practically identical with 

 those of Pinus Pinaster, which should be compared (see No. 245). 



Type specimens from commercial sources and from trees known 

 before felling. 



No. 247. SUGAR PINE. Pinus Lambertiana. Dougl. 



PLATE XVI. FIG. 138. 



Natural Order. Conifers. 



Synonyms. P. albicaulis, Eng. P. flexilis, Lyall. P. flexilis, 

 var. albicaulis, Eng. 



Sources of Supply. United States, British Columbia. 



Alternative Names. North Carolina Pine. Great Sugar Pine 

 (12). Columbian Pine (Sinclair). White-barked Pine (66). 

 White, Soft or Pumpkin Pine : Pin gigantesque, Resin-kiefer 



(15). 



Physical Characters, etc. Recorded dry-weight 23-51 Ibs. per 

 cu. ft. Hardness Grade 7, compare English Alder. Taste astrin- 

 gent and insipid, not terebinthine or vinous. Burns well with 

 little or no smell, heat expels resin : embers glow in still air : ash 

 grey. Solution pale straw : white ppt. upon the addition of 

 potash. 



Grain. Coarse, but the pores though open are not numerous. 

 Surface dull. 



Bark. "Of a dark-grey colour : rough, with rather firm 

 longitudinal ridges resembling that of the White Pine (P. 

 strobus) " (49). 



Uses, etc. Similar to those of the Pitch Pine. May be met 



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