28 JOURNAL OF FORESTRY 



Grass line. See Straw line. 



Gravel a dam, to. To cover with gravel or earth the up-stream side of the 

 timber work of a dam to make it water tight. (N. F.) 



Greaser, n. 1. One who applies skid grease to a chute. (P. C. F., R. M. F.) 

 Syn.: chute greaser, skid greaser. 

 2. See Chore boy. 



Green lumber (G.). Lumber, the moisture content of which is greater than air- 

 dried lumber. Unseasoned. (Gen.) 



Green planer. A planing mill in which green lumber is surfaced. (Gen.) 



Grips, n. Sec Skidding tongs. 



Grooving saw. A small circular saw of special pattern, adapted for cutting a 

 groove in a board. (Gen.) See Dado-head saw. 



Gross hundred. As referring to European lumber measurement, 120 pieces which 

 comprise a standard hundred. 



Ground hog. See Ground skidder. 



Ground loader. That member of a loading crew who attaches the tongs or load- 

 ing hooks to the log, or who guides the logs up the skids. (Gen.) 



Syn.: bottom loader, hooker, hooker-on, send-up man (Gen.), hookman, toug 

 puller (S. F.), tong hooker (App.), sender (E.G.). 



Ground skidder. A power skidder which skids logs on the ground. (Gen.) 

 8yn.: ground hog. (App.) 



Grouser, n. A large and long stick of squared timber sharpened at the lower 

 end and placed in the bow of a steam logging boat; it takes the place of an 

 anchor in shallow water, and can be raised or lowered by steam power. 

 (N. W., L. S.) 



Guard a hill, to. To keep a logging road on a steep incline in condition for use. 

 (N. F.) 



Gullet, See Throat. 



Gum, n. See Crude turpentine. 



Gum, V. To grind out the throats of a saw. (Gen.) 

 Syn.: chamber. 



Gummer, n. A tool used to cut out the throats of a saw. (Gen.) 

 Syn.: chambering machine. 



Gun, n. A device which is inserted into an undercut to determine the direction 

 of fall of the tree. (P. C. F.) 



Syn.: gunning stick, shot-gun, timber compass. 



Gun, '('. 1. To aim a tree in felling it. In ease of very large, brittle trees, such 

 as redwood, a sighting device is used. (Cal.) 



Syn.: point, swing. 



2. See Cannon a log, to. 

 Gun a log, to. See Cannon a log, to. 

 Gun boat. See Catamaran. 

 Gunning stick. See Gun. 



Gutter, n. A narrow zinc or galvanized-iron strip bent V-shaped which fur- 

 nishes a channel for guiding crude turpentine into a cup. (S. F.) 

 Gutterman. See Swamper. 

 Gutter road. The path followed in skidding logs. (Gen.) 



Syn.: drag road, earth slide, runway, skidding trail, snaking trail. 

 Guy line. 1. Lines used to hold raft timbers together. (N. W.) 



2. Lines which support a gin pole, spar, or tail trees. (Gen.) 

 Gypsy yarder. See Spool donkey. 



