452 



SELLING LUMBER 



18. A pitch streak is a well-defined accumulation of pitch 

 at one point in the piece, and when not sufficient to develop a 

 well-defined streak, or where fiber between grains is not satur- 

 ated with pitch, it shall not be considered a defect. (See 

 page 456). 



LOOSE KNOT. 



19. A small pitch streak shall be equivalent to not over 

 one-twelfth the width and one-sixth the length of the piece it 



is in. 



