48 



Modes of Planting Trees. 



ures apart, the diagonals will be slightly more than 14. This reg- 

 ularity is best secured by marking 

 the ground off into small squares, 

 and planting in alternate points of 

 intersection each way, as shown in 

 the margin. (Fig. 29.) 



28. Mode of Planting in Quincunx 

 Order. 



Mode of Marking 1 for Quincunx 

 Planting. 



30. Triangular Order of Planting. 



31. Mode of Parallel Marking to 

 secure the Triangular Order. 



The Triangular Order. 



182. In this, the rows run in 

 three directions, the trees being at 

 equal distances in each at the cor- 

 ners of equilateral triangles ; or, 

 combining six of these triangles, 

 we find that each tree is the center 

 of a hexagon, with six trees at 

 equal distances around it. We get 

 the same arrangement by drawing 

 a series of circles having equal 

 radii, and so that the circumference 

 of each passes through the centers 

 of all of those around it. We nearly 

 secure this in a practical way, by 

 marking off a field by parallel 

 lines, crossing at right angles, and 

 at twice the distance apart in one 

 direction more than in the other. 

 If we plant at the alternate points 

 of intersection, we shall have the 

 triangular order. By plowing in 

 the three directions between the 

 rows, such plantations may be cul- 

 tivated in the same way as squares, 

 but the rows must be wider apart 

 in order to do this to advantage. 



