72 THE IDYL OF THE SPLIT-BAMBOO 



or the other side of the groove and it remains un- 

 touched by the plane. The sketch below, of the 

 wooden double mold, will make this clear if the text 

 does not. 



This is the way that some build the groove for 

 the full-length mold of wood. It is made by fasten- 

 ing together two strips, of say % inch by i% inches 

 and 3% to 4 feet long, which strips have had the 

 proper bevel cut along the upper edges of their ad- 

 joining sides. The diagram shows how this bevel 



A Mold strip 

 B Plane 

 C Guiding-strip 

 D Brace 



Pattern for planing-rig: 



E Baseboard 

 FF Wedges in wedging 

 space 



may be cut accurately, by means of a plane, rectan- 

 gular on cross-section, and which is slid along a 

 guiding-strip that holds it tipped laterally at the 

 proper angle. A pattern for this rig is easily made 

 in full size by first drawing the mold-strip cross-sec- 

 tion, A; next, getting the inclination of the bottom 

 of the plane (B) by means of an equilateral triangle 



