332 



THE TIMBERS OF THE WORLD 



Table X. — ^Elm (English). 

 Transverse Experiments. 



Number 



of the 



specimen. 



With the 



apparatus 



weighing 



390 lbs. 



After the 



weight 



was 



removed. 



Inches. 



5-25 



475 

 4-70 



Inches. 



1-25 



1-30 

 1-35 



At 

 the crisis 



of 

 breaking. 



Total weight 

 I required to 

 I break 

 each piece. 



I 



Specific 

 gravity. 



Inches. 

 3-50 

 7'50 

 6-25 

 4'oo 



5-50 

 5-00 



510 



450 

 420 



Weight 



reduced to 



specific 



gravity 



700. 



578 

 571 

 558 

 553 

 545 

 542 



625 



450 



413 



Weight 

 required I 

 to break 1 

 I square 

 inch. I 



I 



lbs. : 



i 



127-5 I 



87-5 



So-o 



I 14-70 i 3-90 j 31-75 



1380 



3347 



1488 



295 00 



Average . \ 4-90 



1-30 j 5-291 



460 



558 



496 i 98"33 



Table XI. 



Tensile Experiments, 



Number of the 

 specimen. 



Dimensions of 

 the pieces. 



Specific 

 gravity. 



Weight the 

 piece broke 



Direct cohesion i 



on 

 I square inch. 



I Inches. 



Table XII. 

 Vertical or Crushing Strain on cubes of 2 inches. 



F = 250820. 5=1032. 



