( 5 ) [ASP 



Apple Tree (Pyrus mains). A heavy, compact and fine-grown 

 wood, not liable to ignition when exposed to friction. Used 

 by toolmakers and turners. 



Apron Piece. A piece of timber fixed into the walls of a staircase 

 and projecting horizontally, to support the carriage pieces 

 and joisting in the half spaces or landings. It is sometimes 

 called the Pitching Piece. 



AxSiUQ&ti&iAraucariaimbricata). A coniferous tree indigenous in 

 South America and Australia. Grown in England for orna- 

 ment on lawns and known as Monkey Puzzle. 



Arbor. See " Saw Arbor." 



Arbor Vitse, or White Cedar (Thuya occidentalis). A native of the 

 Northern States of America and Canada. Used largely for 

 shingles in the States and for telegraph poles in Canada. 



Arboretum. A place in a park in which trees and shrxibs are 

 cultivated ; extended to a pleasure-park or municipal place 

 of recreation, as at Derbj^, Nottingham, etc. This is the 

 root-word of " Arboriculture," " Arborist," and allied forms 

 or terms. 



Arboriculture. A term literally meaning the cultivation of trees 

 but is generally used with regard to the planting and manage- 

 ment of timber trees. 



Arbutus (Arbutus unedo). A hard, nicely veined, durable wood 

 much used by cabinet makers and turners. Found in Great 

 Britain and the South of Ireland. 



Architrave. The group of mouldings above and on both sides of 

 a door or other opening, especially if square in form. 



Area. A term meaning extent of surface. 



Arms. The wooden cross-pieces at the top of telegraph poles 

 upon which the insulators are placed. 



Arris (French Arete). The edge of a roof, or a stone, or a piece of 

 wood. " A sharp arris " is a cutting edge. 



Arris Fillet. A triangular piece of wood vised to raise the slates 

 of a roof when they abut against the shaft of a chimney or 

 wall, so as to throw off more effectually the rain from the 

 joining, but more generally to rafse the eave course of 

 slated or tiled roofs. It is called also the Tilting Fillet. 



Arris Gutter. A wooden gutter in the form of a V in section, 

 fixed to the eaves of a building, usually called " a V gutter." 



Arris Rail. A rail of triangular section used for fences. 



As per advice. In accordance with a previous or subsequent letter 

 or wire giving instructions or information. 



