417 



18-20 in. rainfall areas, but does best in the 20-25 in. 

 rainfall areas on the heavier soils. It develops a tap root as 

 a little one-year-old nursery tree, and if transplanted 'open 

 root' needs shelter from hot winds till established. In pots 

 the t&p root invariably coils round in the bottom of the pot 

 and it is very unsatisfactory to plant; many die when treated 

 in this way. The tree is certainly well adapted to planting 

 in proper woods in the drier areas of this State. At Bundaleer 

 it is seen withstanding the long dry summer on rough quart- 

 zite rock. It is free from disease. It yields an extraordinary 

 amount of resin and turpentine. The younger trees up to 40 

 years old if felled coppice, but this is of little economic value. 

 The tree has all the virtues of the insignis, but is 15 per cent, 

 slower in its growth. When the drought is killing insignis 

 trees the Canary Island pines are thriving. Further, pests 

 do not attack it and fire will not wipe it out, as it sprouts 

 again and continues its growth/' 



Finns insignis has been commonly regarded as a rather 

 poor timber, but the results show that its strength compares 

 quite well with that of oregon. It is not quite so good as a 

 beam, though the difference is not very great, but it has a 

 greater resistance to splitting and shearing along the grain, 

 and it is less easily compressed across the grain. It is quite 

 a useful timber for structural purposes. Finns maritima is 

 not so good as Finns insignis as a beam, nor has it so great a 

 resistance to shearing, but its strength in compression is 

 greater than that of insignis. 



A large amount of work is involved in carrying out such 

 a series of tests, both in the actual experiments and in the 

 numerical reduction. For very considerable help in all this 

 I wish to acknowledge my indebtedness to Mr. H. H. 

 Cartledge, who was till recently my "assistant, and also to 

 Messrs. Altmann, Francis, James, and Robin, students in the 

 Engineering School at the University. 



