WORDS AND PHRASES 495 



is full of logs from the point to which the rear is 

 cleared to the mill, sorting jack, or storage boom. 



Sorting; Boom. A strong boom used to guide logs into 

 the sorting jack, to both sides of which it is usually 

 attached. 



Sorting Gap. See Sorting Jack. 



Sorting Jack. A raft, secured in a stream, through an 

 opening in which logs pass to be sorted by their marks 

 and diverted into pocket booms or the down stream 

 channel. 



Spanish Windlass. A device for moving heavy objects 

 in logging. It consists of a rope or chain, within a 

 turn of which a lever is inserted and power gained by 

 twisting. 



Spiked Skid. A skid in which spikes are inserted in 

 order to keep logs from sliding back when being 

 loaded or piled. 



Splash. To drive logs by releasing a head of water 

 confined by a splash dam. 



Splash Boards. Boards placed temporarily on top of a 

 rolling dam to heighten the dam, and thus to increase 

 the head of water available for river driving. 



Splash Dam. A dam built to store a head of water for 

 driving logs. 



Si)Iit Roof. A roof of a logging camp or barn made by 

 laying strips split from straight-grained timber. The 

 strips run from the ridge pole to the eaves, and break 

 the joints with other strips, as in a shingle roof. 



Spool Donkey. A donkey engine for winding cable, 

 equipped with a spool or capstan, instead of a drum. 



Spool Tender. One who guides the cable on a spool 

 donkey. 



Spring Board. A short board, shod at one end with an 

 iron calk, which is inserted in a notch cut in a 

 tree, on which the faller stands while felling a tree. 



S|)ring Pole. 1. A springy pole attached to the tongue 

 of a logging sled and passing over the roll and under 

 the beam, for holding the weight of the tongue off 

 the horse's neck. 2. A device for steadying a cross- 

 cut saw, so that one man can use it instead of two. 



Sprinkler. A large wooden tank from which water is 

 sprinkled over logging roads during freezing weather 

 in order to ice the surface. 



Sprinkler Sletls. The sleds upon which the sprinkler 

 is mounted. They consist of two sleds whose runners 

 turn up at each end fastened together by cross chains, 

 and each having a pole, in order that the sprinkler 



