SELLINGLUMBER 413 



4. A PIN KNOT is sound and not over ^ inch in diame- 

 ter. 



5. A STANDARD KNOT is sound and not over lj 

 inches in diameter. 



6. A LARGE KNOT is one any size over \V 2 inches in 

 diameter. 



7. A ROUND KNOT is oval or circular in form. 



8. A SPIKE KNOT is one sawn in a lengthwise dire~- 

 lion. 



(The mean or average diameter of knots shall be considered 

 ui applying and construing the rules except in dimension.) 



9. A SOUND KNOT is one solid across its face, is as 

 hard as the wood it is in; may be either red or black, and is 

 so fixed by growth or position that it will retain its place in the 

 piece. 



10. A LOOSE KNOT is one not held firmly in place by 

 growth or position. 



11. A PITH KNOT is a sound knot, with a pith hole not 

 more than J4 inch in diameter. 



12. An ENCASED KNOT is one whose growth rings are 

 not intergrown and homogeneous with the growth rings of the 

 piece it is in. The encasement may be partial or complete ; if 

 intergrown partially or so fixed by growth or position that it 

 will retain its place in the piece, it shall be considered a sound 

 knot ; if completely intergrown on one face, it is a water-tight 

 knot. 



13. An UNSOUND KNOT is one not as hard as the wood 

 it is in. 



PITCH. 



14. PITCH POCKETS are openings between the grain 

 of the wood containing more or less pitch or bark, and shall 

 1)e classified as small, standard and large pitch pockets. 



15. A small pitch pocket is one not over y% of an inch 

 wide. 



A standard pitch pocket is one not over ^ of an inch wide, 

 or 3 inches in length. 



A large pitch pocket is one over y% of an inch wide or over 

 3 inches in length. 



