214 The Principles of Fruit-growing 



walks to the second stake of the first row, and B again strikes an arc. 

 At the intersection of these arcs he sets a stake, locating the position 

 of the tree. B then strikes an arc where he thinks the location of the 

 second tree will be. When all the trees of row 2 are located, it becomes 

 the base-Une from which to locate trees of row 3. If the ground be 

 uneven, a plumb-bob should be used so that the wire may be kept 



Fig. 62. A method of squaring an irregular field. 



horizontal. In locating the end tree there is frequently but one 

 stake from which to strike an arc. The location is easily determined, 

 however, by locating the second tree first, and then using it as the 

 point from which the arc is struck. After four rows have been located 

 by the arcs, others may be lined-in." 



The method of squaring a field for orchard-planting is described 

 again by Jarvis (Conn. Bull. No. 62): "Before attempting to lay 

 out a field that is irregular' in outline, it must first be squared off in 



