WORDS AND PHRASES 478 



Dehorn. To saw off the ends of logs bearing the owner's 

 marks and put on a new mark. 



Dense. See crown density. 



Diameter Breasthigh. The diameter of a tree 4 Vz feet 

 above the ground. 



Diameter Class. All trees in a stand whose diameters 

 are within prescribed limits. 



Diameter Growth. The increase in diameter of a tree. 



Diameter Limit. The diameter usually breasthigh, 

 which defines the size to which trees are to be meas- 

 ured or used for any given purpose. 



Diameter Tape. A tape for ascertaining the diameter 

 of trees, so graduated that the diameter corresponding 

 to the girth of a tree is read directly from the tape. 



Dingle. The roofed over space between the kitchen and 

 the sleeping quarters in a logging camp, commonly 

 used as a store room. 



Dinkey. A small locomotive. 



Dog. A short, heavy piece of steel, bent and pointed at 

 one end, and with an eye or ring at the other. It is 

 used for many purposes in logging, and is sometimes so 

 shaped that a blow directly against the line of draft 

 will loosen it. 



Dog Boat. See rigging sled. 



Dogger. One who attaches the dogs or hooks to a log 

 before it is steam skidded. 



Dog Hooks. 1. The strong hook on the end of a dog- 

 warp. 2. A hook on the end of a haul-up chain of a 

 size to permit its being hooked into a link of the 

 chain when the latter is looped around a log or other 

 object. 



Dogs. See skidding tongs. 



Dogwarp. A rope with a strong hook on the end, which 

 is used in breaking dangerous jams on falls and 

 rapids and in moving logs from other difficult posi- 

 tions. 



Dog Wedge. An iron wedge with a ring in the butt, 

 which is driven into the end of a log and a chain 

 hitched in the ring for skidding the log by horse- 

 power; also used in gathering up logs on a drive by 

 running a rope through the rings and pulling a num- 

 ber of logs at a time through marshes or partly sub- 

 merged meadows to the channel. 



Dolly. See upright roller. 



Dolphin. A cluster of piles to which a boom is se- 

 cured. 



