278 



A HANDBOOK OF CONIFERS 



former has more heartwood than the latter and is stated to occur 

 on colder and less favourable soils than the white. The roots 

 are tough and pliable and have been used for weaving into 

 baskets, etc. 



The following strength-tests were made in the Canadian 

 Government Laboratories :^ 



Fig. 63.— la RIX AMERICANA. 



a, branch with two short shoots and cones ; b, leaves and winter buds on long shoot ; c, leaf 

 from short shoot ; d, e, sections of broad and narrow leaves ; /, small variety of cone ; g, cone-scale 

 with two seeds. 



Weight green (moisture 25 per cent., wood 75 per cent.), 

 40| lb. per cubic ft. 



Tension, strength across grain at elastic Umit, 480 lb. per 

 sq. in. 



^Gat. Empire Timber Exhib., 1920. 



