44 



WOODWORKING 



strips. This work must be done with great care to avoid 

 splitting either the supporting or any one of the fan strips. A 

 wise precaution against such an accident is to bore holes with 

 a brad-awl for each of the nail holes. 

 Supplementary Instructions. 



20. The Buggy Axle Rest and the Measuring Crate 

 require the use of tools not described in instructions for the 

 flower trellis. 



HaJf circle 



used 



FlG. 40. Bevel square 

 with a protractor. 



FIG. 41. Bevel square used in 

 geometric construction. 



21. The Bevel Square, which is used to lay off the angles 

 of the ends of the braces in the buggy axle rest, is shown in 

 Fig. 4. It has an adjustable blade. It may be set by placing 

 it upon a protractor, as shown in Fig. 40, or for the more com- 



FIG. 42. Setting bevel square to 

 an angle of 45. 



fe line 



FIG. 43. Laying out with 

 bevel square. 



mon angles, it may be set on the edge of a board with a geo- 

 metrical construction made near this edge with compass and 

 straight-edge, as shown in Fig. 41. The angle of 45 degrees 

 is easily secured by placing the edge of the bevel-square blade 

 thru two equal graduations on the sides of a carpenter square, 



