TIMBER 



293 



the foregoing species endwise in compression while green. The fol- 

 lowing table gives the results of these tests in lb./in. 2 . The pieces 

 contained over 40 per cent of moisture. A comparison of the results 

 obtained from these tests with those reported in the preceding table 

 shows that the compressive strength has been diminished from 50 

 t> 75 per cent by the presence of the given percentage of moisture. 



COMPRESSIVE TESTS OF GREEN TIMBER 



special tests were also made to determine: 

 The effect of bleeding (tapping for turpentine) on long-leaf pine. 



(l>) Influence of size on transverse strength of beams. 

 Influence of size on compressive strength. 



(I) The effect -of hot-air treatment in dry kilns on strength. 



The ivsults obtained from these tests indicated: 

 That t>l<M'<lin<r does not affect the strength. 



