ILLUSTRATIONS 
Plate 1 
Testing machine equipped for timber testing. 
TEXT FIGURES 
Fig. 1. Apparatus used for bending tests on large beams. 
2. Deformation curve. 
3. Deformation curve. 
4. Apparatus used for testing small clear beams. 
5. Apparatus used in making tests of compression parallel to grain. 
6. Diagram for tests in compression parallel to grain. 
7. Apparatus used in making tests in compression perpendicular to 
grain. 
8. Typical load deformation diagram for tests in compression per- 
pendicular to grain. 
9. Apparatus used in making shearing tests. 
10. Apparatus used in testing hardness of timber. 
11. Percentage of average modulus of rupture. 
12. Percentage of average modulus of rupture. 
13. Percentage of average modulus of rupture. 
14. Percentage of average modulus of rupture. 
15. Relation between dry weight and modulus of rupture 
from tests on small clear beams. 
16. Relation between dry weight and modulus of rupture 
from tests, on small clear beams. 
17. Relation between dry weight and modulus of rupture 
from tests on small clear beams. 
18. Relation between dry weight and modulus of rupture 
from tests on large beams. 
19. Relation between dry weight and modulus of rupture 
from tests on large beams. 
obtained 
obtained 
obtained 
obtained 
obtained 
535 
