108 WOODWORKING 



on the pane of glass as the knife is held in the right hand, or 

 with a square-edged chisel, very carefully drive the point about 

 3/16" into the wood by letting the edge of the putty-knife or 

 chisel blade gently strike the point three or four times. 



Likewise, insert other points, locating them so as to have 

 one come near the corner of the frame on each edge of the 

 pane, and others placed to make the distance between con- 

 secutive tins about 8" or 10". In case of a small pane, at 

 least one point should be placed near the middle of each edge 

 of the pane. 



If a pane is being set in a vertical frame, as in a window 

 sash in a window frame, care must be taken to hold it firmly 

 in position with the left hand while the right hand is used to 

 drive the points into the frame. Care must always be taken 

 to have the pane well seated; that is, firmly resting against 

 the frame on which the flat surface of the pane rests. 



98. Applying the Putty. In order to seal the pane in 

 the frame, making the joint waterproof, putty is pressed into 

 the corner between the pane and the frame. Putty as it 

 comes from the stock receptacle, may need to be mixed with a 

 little boiled linseed oil to soften it. The oil should be mixed 

 thoroly with the putty. Unless the putty is quite dry, the oil 

 need not be added to it, as kneading it in the hands will make 

 it soft. 



In applying putty, one should practice the following 

 method: (1) After having beaten and kneaded the putty 

 to an even consistency, cut off a small amount and form it 

 roughly into the shape of a ball. (2) Put this putty into the 

 palm of the left hand and hold the putty knife in the right. 

 Set the frame to be puttied on an easel or on some similar de- 



