XXVIL. ] LIM, 221 
TABLE CXV. 
Tensile Experiments. 
Number Dimensions Speaihe Weight the Direct 
of the oO i as piece cohesion on 
specimen. the pieces. gravity. broke with. | x square inch. 
Inches. - Tbs. Ibs. 
7 ) 690 21,060 5,040 
8 2X2X30 625 26,880 6,720 
9 j 611 18,480 4,620 
Total. . is 1926 66,420 16,380 
Average . age 642 22,140 5,460 
TaBLe CXVI. 
Vertical or Crushing Strain on cubes of 2 inches. 
No. 10. | No. rz. | No. 12. | No. 23. | No. x4. | No. 15. | Total, |Average.| Ditto on 
E I square 
Tons. | Tons. | Tons. | Tons. ; Tons. | Tons. | Tons. | Tons. inch, 
10125 | 10°00 | 10°75 | 10°50 | 10°25 10°375 | 62°00 10°333] 2°583 
E = 250820, S = 1032. 
Contracts are annually made for the supply of English 
Elm timber for the royal navy, according to the follow- 
ing specification and conditions, the quantities of the 
several classes, and the quantity required for each of the 
dockyards, of course varying from year to year, to suit 
the works in hand. 
