— 50 — 



VI. Conclusion 



The above investigation led to the results mentioned above. Since, 

 however, factors exercise a considerable influence upon the strength of 

 the wood are numerous, no precise determination of the real cause of 

 rupture can be arrived at. Moreover, the presence of knots considerably 

 impairs the strength of wood and foresters desirous to get the best growth 

 of timber trees should take great care in pruning so as not to produce 

 large knots. Also the felled trunks must be properly seasoned. 



