.'U) 



(.'ross-breakiiij: stivii^th iu iituiosplu-ros. 

 Fig. G.— Relation between cross-breaking strengtli and modulus of elasticity or stifVness lor Pine, Larch, Spruce, and 



Fir timber. (After Bauschinger.) 



[Cros.s-broakiiig strength = 0,0045 niiidulu.s ol' elasticity + 450.] 



Speeific 



Fig. 7.- 



giavity (n-dneed to 15 ]ier(M-ii1 iiiuisliire). 

 -Relation between compres.sive slrenj;ll 



timber. (After UauscUinger). 



and s].erilic gravily or w.-i;,'lil lor I'iuc, l..ii<-li, S|ii 

 Coniiiiessive Htrengtli ^ i:{,«00 siie.ifH- gravity — 900.] 



and l"ir 



