44 JOURNAL OF FORESTRY 



Pile dam. A dam formed by a double row of piles between which are placed 



stones, gravel, and fine material to prevent the passage of water. (L. S.) 

 Piler. See Stacker. 

 Piling strip. See Sticker. 

 Pillar, n. See Prop. 



Pin dote. Small rotten spots on the ends of logs.; (Gen.) 

 Pine sawyer. A beetle of the genus Monohammus which attacks the sapwood of 



pine logs. (S. F.) 

 Pin knot. A knot which is sound and not more than one4ialf inch in diameter. 



(S. F.,P. C.F.) 

 Pin worm holes. Small holes in timber and lumber made by the larvae of certain 



beetles. (Gen.) 

 Pirate, ii. A manufacturer who sells direct to a consumer at a place where 



retailers are in business. (Gen.) 

 Pit, n. (Log.) A skidway elevated so that its base is level with the logging 



car bunks. (App.) 



(Lum.) 1. A cleared space at the tail of a portable mill which is used for 



storing lumber. 

 Syn. : dump. 



2. A hole in which the pit-sawyer stands when whip-sawing lumber. (Gen.) 

 Pit boy. One who takes staves from the saw and passes them on to a lister. 



(Gen.) 



Syn.: stave catcher. 

 Pith knot. A sound knot with a pith hole in the center which is not more than 



one-fourth of an inch in diameter. 

 Pitch, n. The angle between the back of a tooth and a line drawn from the 



extreme point of the tooth to the (back of a band saw or to the center of a 



circular saw. (Gen.) 

 Pitch pocket. In coniferous woods, an opening between the annual growth 



rings containing pitch. (Gen.) 

 Syn.: pitch seam. (P. C. F.) 

 Pitch seam. See Pitch pocket. 

 Pitch streak. In coniferous woods, a well-defined accumulation of pitch at one 



point. (Gen.) 

 Pitt, n. An elevated rollway or skidway whose base is level with the log-car 



bunks. (App.) 

 Pitt-saw, H. See Whip-saw. 

 Pit-sawyer, n. One who stands in the pit below the log and aids in operating a 



whip-saw. (Gen.) 

 Place, n. See Turpentine orchard. 

 Plain-sawed. All lumber which is not classed as quarter-sawed. (Gen.) 



Syn.: bastard grain, flat grain, slash grain. 

 Plane, v. See Surface. 

 Planer and matcher. A machine used in a planing mill or wood-working factory 



to surface and match lumber. (Gen.) See Floorer. (P. C. F.) 

 Planer feeder. Sec Machine feeder. 

 Plank, n. 1. A piece of lumber from 2 to .*> inches thick. (Gen.) 



2. In the southern yellow-pine export trade, pieces 7 inches and up in width 

 and from 2 to 2% inches in thickness. (S. F.) 



3. A piece of lumber 8 feet or more in length, more than 11 inches in widtli, 

 and from 1^^ to 4^4 inches in thickness. (English markets.) 



Plug, n. A steel pin about 2 inches in diameter and 18 inches long. Two of the 

 plugs are joined together by chains which are attached to a large ring. They 

 are used on pullboat operations in a cypress swamp in place of skidding tongs. 

 (S. F.) 

 Syn.: puppy. 



