XXXIII.] 



YELLOW PINE. 



361 



We are thus enabled to compare the strength of the 

 earlier and the later growth of this wood. 



Table CXLVI.— Yellow Pine (Canada). 

 Transverse Experiments, — 2»rf Exa^nple. 



VIZ. ; 



The mean results of the experiments are as follows, 



The centre piece s.g. 430 broke with 360 lbs. 

 ,, next pieces 1 and i' ,, 562 ,, 480 ,, 



2 ,, 2' ,, 584 ,, 537 ,, 



„ outer ,, 3 „ 3' „ 567 ,, 493 ,, 



In the above example, there is something like a 

 direct proportion existing between the specific gravity 



