WORDS AND PHRASES 491 



See Forest. A forest composed wholly or mainly of 

 trees grown from seed. 



Seedling. 1. A tree grown from seed. 2. A tree 

 grown from seed which has not reached a height of 

 three feet. See Tree Class. 



Seed Tree. Any tree which bears seed specifically, a 

 tree left by the logger to provide the seed for nat- 

 ural reproduction. 



Self-Loading Dam. See Rafter dam. 



Semi-mature Forest. Forest in which rapid growth in 

 height has culminated, but diameter growth has not 

 begun to fall off. 



Send Up Man. That member of a loading crew who 

 guides the logs up the skids. 



Send Up. In loading to raise logs up skids with cant 

 hooks, or by steam or horse power. 



Setting. The temporary station of a portable saw mill, 

 a yarding engine, or other machine used in logging. 



Severance Cutting. The cutting of all trees upon a nar- 

 row strip before natural pruning has far advanced, in 

 order that the trees bordering this strip may, as the 

 result of partial exposure, become wind-firm through 

 the development of strong roots. Thus severance cut- 

 tings are made to strengthen the trees on the edge 

 of a stand which will later be entirely exposed 

 through the removal of the stand which now pro- 

 tects it. 



Shaft. See Stem. 



Shake. A crack in timber, due to frost or wind. 



Shanty Boat. See Wanigan. 



Shanty Boss. See Chore Boy. 



Shear Boom. A boom so secured that it guides floating 

 logs in the desired direction. 



Shear Skid. See Fender Skid. 



Shoot a Jam. To loosen a log jam with dynamite. 



Shore Hold. The attachment of the hawser of a raft 

 of logs to an object on the shore. 



Shore Road. See Go-back road. 



Shot Holes. Holes made in wood by boring insects. 



Side Jam. A jam which has formed on one side of a 

 stream, usually where the logs are forced to the shore 

 at a bend by the current, or where the water is shal- 

 low or there are partially submerged rocks. 



Side Mark. See Bark Mark. 



Side Winder. A tree knocked down unexpectedly by 

 the falling of another. 



Signal Man. One who transmits orders from the fore- 



