A TREATISE ON NUT CULTURE. 



37 



In setting a triangular field, or any other that is not rectangular, the fore- 

 going is not applicable. In such cases the distance to be left outside of the 

 outside trees can be determined only by the size and shape of each particular 

 piece to be set. 



Now, for a rectangular field, stake off a base line along one side or end, and 

 set stakes at every twenty feet, or any other distance, if the trees are to be set 

 more or less than twenty feet apart. Suppose stakes be set along the line A B 

 of the rectangle A B C D. 



Let A and B be the extremities of the row measured as the base line. It 

 sometimes happens that there are fences or other obstructions in the direc- 

 tion of e and/", so it is not so easy to lay off a right angle from A or B as 

 from some other point, as G. The surveyor's method of laying off a right 

 angle with the chain along is a good way to lay off a right angle at G. To illus- 

 trate, take a rope, say seventy feet long. Measure off from G towards B, a dis- 

 tance G h, less than half the length of the rope. From G towards A an equal 

 distance G i equal to G h. Now, fasten the ends of the rope at the points i and 

 h, or have two persons hold the ends at these points; carry the center of the rope 

 out as far as it will reach in the direction of the line CD; set a stake, as at n, 



B 



U m C 



set a stake at m, in range with G , and G m will be at right angles to A B. It 

 is necessary to be very particular in measuring from G to i and /i, and in find- 

 ing the point n. Set stakes the required distance apart along G m, measuring 

 from G towards m. Now, measure off the required distance from m towards 

 7J, set a stake, and between this point and a point the required distance to the 



