THE TIMBERS OF COMMERCE 



No. 230. WESTERN WHITE CEDAR. Thuya 



gigantea. Mull. 

 Plate XVI. Fig. 140. 



Natural Order. Coniferae. 



Synonyms. T. plicata, Don. T. Menziesii, Dougl. 



Alternative Names. Canadian Red Cedar : Giant Arbor- Vitae : 

 Red Cedar (65). Yellow Cedar (2). Arbor- Vitae (100) : Giant 

 Cedar : Shingle-wood : North- Western Red Cedar : Pacific 

 Arbor- Vitae (49). 



Sources of Supply. United States and Canada. 



Physical Characters, etc. Recorded dry-weight io.f-26 J lbs. per 

 cu. ft. Hardness Grade 8, compare White Pine. Smell agree- 

 able : strong and spicy when worked. Taste faintly terebin- 

 thine. Burns rather badly, embers soon die out in still air : pro- 

 duces a long smoky flame and a slightly tarry smell. Solution with 

 water the colour of the wood : with alcohol faint brown, and dar- 

 kens upon addition of potash with a ppt. 



Grain. Close, even, but spongy. t Surface of the Spring wood 

 dull : of the Autumn wood brilliantly lustrous. 



Bark. ? 



Uses, etc. " Not strong, brittle, very durable in contact with 

 soil " (100). " One of the finest trees of Western America " (66). 

 For "shingles is unequalled by any other wood . . . well adapted 

 for interior finishing of all kinds, . . . telegraph-poles, fence-posts 

 and the immense canoes made by the West Coast Indians" (65). 

 " Cabinet-making, doors, posts : shingles 22 in. wide and split 

 boards 12-15 in. wide by 12 ft. long were shown at the Chicago 

 Exhibition " (2). " Of wonderful durability " (49). 



Authorities. Macoun (66), p. 460. Ditto (65), p. 30. Ander- 

 son (2), p. 10. Sargent (100), p. 177. Hough (49), pt. ix. p. 45. 



Colour. Uniform brownish to reddish. " Light brown, turn- 

 ing darker with exposure : the thin sap-wood nearly white " 

 (roo). 



Anatomical Characters. As those of Callitris arborea, No. 228. 

 If a small strip of this wood be taken and bent in the direction of 

 the rays the wood will separate at the outer boundaries of the rings 

 and the surfaces will be seen to be brilliantly lustrous like satin. 

 Type specimen authenticated by Hough. 



No. 231. NEW ZEALAND CEDAR. Libocedrus 

 Bidwilli. Hook. 

 Plate XVI. Fig. 140. 

 Natural Order. Coniferae. 



Alternative Names. Kawhaka (A.G.) : (also applied to L. doni- 

 ana, Endl). Pahautea (61). Paukatea (12). 



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