28 



LOG I. TREE 52 



MODULUS OF RUPTURE 

 IN CROSS-BREAKING 



RELATIVE ELASTIC RESILIENC E 



DISTANCE. FROM HEART 



V 



■3 

 "1 



1 



SHEARING 



AVERAGE QUALIIY 



^^ 



Distance from heart 



OISTAMCE: from HtART 



Fici. 15.— Results of tests on 4"x4" sticks from log 1, tree 52, Pi»us juilunlrh, showing viiriatiou of strength across' 



section of log. Long-leaf piiie (Piiiits pulioiliis). 



