290 



STRENGTH OF MATERIALS 



2. Stems of spruce or pine which are felled in winter huv.-, \\hrii 1 

 two or three months after the felling, about 25 per cent givatn- sirm-th than 

 those felled in summer, other conditions being the sain*-. 



He notes, however, that later tests may change these conclusions 

 somewhat. 



AVERAGE RESULTS OF TIMBER TESTS MADK 1<>K TIN. 

 TKNTII CKNM B 



