ABC OF THE STEEL SQUARE 



109 



inches wide and half-inch thick, gauge it three- 

 eighths from jointed edge. 



Take the square as arranged at Fig. 71, and 

 place it on the prepared stuff as shown at Fig. 

 72. Adjust the square so that the twelve-inch 

 line coincide exactly with the gauge line o, o, 

 o, o. Hold the square firmly in the position 



Fig. 71. 



now obtained, and slide the fence up the ^ 

 and blade until it fits snugly against the jointed 

 edge of the prepared stuff, screw the fence tight 

 on the square, and be sure that the 1 2-inch marks 

 on both the blade and the tongue are in exact 

 position over the gauge-line. 



Fig. 72. 



We are now ready to lay out the pattern. 

 Slide the square to the extreme left, as shown 

 om the dotted lines at x, mark with a knife on 



