TECHNOLOGY AND ANATOMY OF SOME SILKY OAK TIMBERS. 365 
Range.—Richmond and Tweed Rivers, New South Wales, 
also the coastal districts of Queensland. 
Timber.—(a) Macroscopical.— Physical Properties. 
Colour.—It is the palest of all the Silky Oaks here described, 
and more nearly approaches in colour that of the true oaks 
Quercus, than any other. The rays, although distinct, are 
the same tint as their setting, their distinctiveness being 
caused by the contrasting plane. 
Figure or Silver Grain.—It possesses a very attractive 
figure which more nearly resembles that of Quercus than 
any of the other Silky Oaks. Therays area very prominent 
feature on the quarter or silver grain, being broad and of 
good length, and the fibres often wavy between them add 
to the beauty. In the tangential section, the ends of the 
numerous rays give a lace-like appearance to the surface, 
and in this end-on-view the rays are more pronounced than 
in the common oak. 
Texture and Grain.—The grain may be said to be straight, 
although at the prominent rays the fibres are bent, but. 
this does not affect the planing or dressing of it, and viewed 
longitudinaily in any cut it would be classed as open. Trans- 
versely tle texture is close, the fibres predominating and 
forming a close compact mass between the well defined 
rays. It works and planes well and takes a good polish. 
Transverse Tests.—(The following were made upon selected 
timber of standard size 38 in. x 3 in. < 3 in., and the same 
remark applies to the other tested pieces.) 
Now yNor2, No. 3. 
ipreakime’ load) «..! <1 1 BON P8961) #91370 7,000 
Modulus of rupture in ibs.persq.in. 3,720 4,650 14,237 
» 483,000 486,000 1,700,000 
Rate of load in tbs. per minute ... 250 428 875 
Modulus of elasticity _,, 
Weight.—40 Ibs. 6 ozs. per cubic foot. 
