LAYING OUT THE VINEYARD. 31 



culty in getting one straight line to begin with. 

 This ascertained, stretch a string along this line, 

 and let it project about eight feet beyond the 

 point or corner where it is proposed to form the 

 right angle. See Fig. 1. Drive a stake at this 

 corner, a, and eight feet from it, on both sides, 

 drive two other stakes, <?, d. With these two 

 stakes as centers, take a string ten or more feet 

 long, and describe an arc of a circle; a line 

 drawn through the point, 5, where the two arcs 

 meet, will be a right-an- 

 gled line. Tie a loop at 

 the end of a string, place 

 it over the middle stake, 



a, and stretch the string ^ 



so that it passes directly rig. i. 



over the point, &, where the two arcs meet, 

 and you will have the desired line. By meas- 

 uring off the distances on these two lines, the 

 rows and the vines will be equally distant 

 from each other. We have named eight and ten 

 feet, but any distances will do, so that the last 

 be greater than the first. 



Another simple method is by the use of a 

 ten foot pole. Ascertain one line as before, 

 and drive a stake where it is proposed to have 

 the corner. From this stake measure off eight 



