SLA] ( 124 ) 



Sill, Sills or Cills. The base of a door, window or sash, or pieces 

 of timber on which anything rests ; its variants are " syle," 

 " sole " and " sule." That on the lowest level is often 

 termed the " groundsel " or " groundsel. " 



Silo or Silos. Term applied to a collection of bins for storing in 

 bulk uncleaned or partially cleaned wheat. Made of (1) 

 timber (see 'Timber Silos"); (2) reinforced or ferro- 

 concrete ; (3) steel cylinders. 



Silver Fir (Abies pectinata), or Swiss pine. A resonant wood. 

 Imported chiefly for making the sounding boards for pianos. 



Silver Grain. The medullary rays of the botanists, being com- 

 pressed cellular tissues, which usually run continuously from 

 the pith to the bark. This figure has other names, as 

 "mirrors" (American), "pith-rays" (ditto), "flecks" 

 (ditto), " patches of silvery-wood " (ditto), " figure." 



Silver-grained. Quarter sawed timber with conspicuous medul- 

 lary rays. 



Silver Spruce. See " Sitka Spruce." 



Sitka Spruce (P. Sitchensis), known also as " Tideland Spruce" 

 and " Silver Spruce." A Pacific Coast timber, extensively 

 used during the late war in the manufacture of air-craft. 

 Its wood is clear and of a silky texture and yields large 

 sizes. 



Skid. An American term signifying the drawing of logs from the 

 stump to the skidway, landing or mill. 



Skidway. The prepared road along which logs after being cut 

 are passed to a special point in the forest. 



Skimming. (1) Correctly speaking, the " third " or " setting-coat " 

 (which see), the last or finishing coat of " three-coat plaster- 

 work." In " two-coat work " it may not obtain, as the 

 second or finishing coat may be " trowelled- off," that is, 

 given a " smooth or a steel-face " to otherwise rough floated- 

 work, i.e., work " tooled " with a wood-float. (2) Fine plastic 

 material, otherwise " putty." 



Skin-dried. Surface dried onlv. 



f 



Skirting. The board, usually moulded, running round a room 

 next the floor. Also known as " plinth " or " washboard." 



Slab. The cut taken first from a log in process of reducing it to 

 square form for the sawing from it of lumber with square 

 edges. A slab has one flat surface, while the other surface 

 is the bark or outside of the log. See "Flitch." 



Slab Edging. Taking the outside cuts off the log. 



