256 



TIMBER AND TIMBER TREES. [CHAP. 



TABLE CXXXV. SPRUCE (CANADA). 

 Transverse Experiments. 



REMARKS. No. i broke with about 12 inches length of fracture ; 2, 3, and 4 with 

 only a little less. 



TABLE CXXXVI. 



Tensile Experiments. 

 (Dimensions of each piece, 2 X 2 X 30 inches, s.g. 484.) 



TABLE CXXXVII. 

 Vertical or Crushing Strain on cubes of 2 inches. 



E = 771800. S = 1759. 



