THE TIMBERS OF COMMERCE 



. 



1 Radial Section. Plate XXIII. Fig 181. Lighter in shade and 

 more lustrous than the Transverse section : Rays minute, readily 

 visible, brown flakes, giving the wood a speckled appearance. 

 Rings : vague streaks, if any indication of the boundaries, 

 no smoky lines or bands. 



Tangential Section. As the Radial, but the rays need lens, and 

 are then plainly visible re> out i mm. high. 



Type specimens from commercial sources and also authenti- 

 cated by the Forest Oft; e Government of New Zealand. 



Perceval (91) states that there are thirteen species of Kauri in 

 New Zealand, but there are not so many species of Agathis. 



No. 234. WESTERN HEMLOCK. Tsuga Merten- 



^na. Carr. 



iral Order ' 



Synonyms. :siana, Bong. P. canadensis. Bong., 



van B. P. P . McNab. Abies Pattoni, McXab. A. 



Albertiana, M 



Sources < nited States and Canada. 



Allernaii Hemlock in British Columbia (2). This 



is not the -i species known by that name. 



Physical Ch .-tc. Recorded dry-weight 36^ Ibs. per 



cu. r. 



Vse$ ong, . . . coarse lumber " (100). " Often 



very larg 150 ft. high . . . yields a good wood, but has 



not been r ( ')6). " Abundant along the whole coast of 



Briti? For many purposes just as serviceable as 



woods wh; more: has been suggested as being suitable 



for paving b: . liable to decay if exposed .to the wet, 



but has nevei tirly tested . . . could be transported to 



-hipping points .vithout great expense " (65). 



Authorities. M ,<. <mn(66),p. 471. Ditto (65), p. 36. Sargent 

 <ioo), p. 36. 



Colour. .vn tinged with yellow . . . the sap- 



wood near (loo). Other details are lacking, as I have 



no solid specimen. 



No. 235. COMMON SPRUCE. Picea excelsa. Link. 



PLATE XVI. FIG. 137. 

 Natural Order. ( 



'.onyms. i, DC. A. picea, Mill. Picea vul- 



Link. Pinus abies L. P. excelsa, Lam. (not Wall). 



'ive Names. > Russian, etc., Spruce from the 



. N 01 wa - m United States of America (46). 



Fir (60). White Deal : Spruce Fir. Faux Sapin : Sapin 

 204 



