XXVII.] 



ELM. 



221 



TABLE CXV. 

 Tensile Experiments. 



TABLE CXVI. 



Vertical or Crushing Strain on ctibes of 2. inches. 



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. 



