Weight of a Superficial Foot of Lead from 1-16TH OF AN InCH TO OnE InCH IN Thickness..—l-16in., 3ilb. ; l-12in., 5lb. ;1-lOin., 61b.; l-8in., 7^1b.; l-6in., lOlb. ;l-5in., 121b; l-4in., 14|lb.; l-3in., 19ilb.; ^in.,29ilb.; fin., 44|lb.; lin., 571b. To Soften Ivory.—Slice half a pound ofmandrake and… … 2F- SCALE OF FEET The above engraving shows the method ofstriking the tracery given in No. 59. To repre-sent the form of the window it is first neces-sary to ascertain the breadth required; theengraving is drawn to the breadth of four feet,which having marked, draw a horizontal lineand lay off…
Design · Decoration and ornament · Art
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