324 TIMBER AND TIMBER TREES. [CHAP. 



TABLE CLXVII. NON-CARBONISED BRITISH OAK. 



REMARKS. No. i broke with scarph-like fracture, 7 inches in length ; 2 broke in three 

 pieces, each scarph-like, 7 inches in length ; 4 broke with scarph-like fracture, 14 inches in 

 length ; 5 broke rather short, with small splinters ; 6 broke with scarph-like fracture, 

 8 inches in length. 



All the specimens that were kept dry, whether 

 carbonised or not, were apparently in good condition ; 

 but those which had been placed .in manure or damp 

 earth, were more or less in a state of decomposition, 

 the softer parts of the concentric layers being slightly 

 wasted away with rot on the surface. The difference 

 in strength between the carbonised and non-carbonised 

 pieces was not very great, but the tables show that 

 of the pieces kept dry, the loss of strength was greatest 

 by about 8 per cent, in the carbonised specimens ; and 

 of those kept in manure,, the loss was about i^ per 

 cent, in excess on the non-carbonised pieces. When 

 the experiment for testing the strength was completed, 



