CULTIVATION. 



105 



■ay, the cord is stretched in the direction ac, and the position 

 of the knots marked by small rods. The points a} c^ are 

 connected by the cord, and the marking, etc., continued at 

 ■a?' c,2 a^ c,^ etc., as before. In rectangle work (Fig. 21) the 

 procedure is similar to that in square work. 



^^^SO 





iPiG. 24.— Rectangular straight edge, (a) for square work, (6) for rectangular 



work. 



When irregular corners are present they are marked out 

 by the aid of a rectangular straight edge (Fig. 24, a b). 



The following table gives the number of plants per acre 

 when set at the various distances specified : — 



