. Transactions. be observed that the plants in any one row are exactlyopposite to—that is to say they are at right angles to—the plantsin adjacent rows. The system of triangles differs essentially from the system ofsquares, as will be seen from Fig. 2. Where the plants are set outin triangles each occupies the apex of an angle, or, looked at in aanother way, each occupies the centre of the figure. The growingspace then, in this case, allotted to each plant is the area of atriangle. The two most important points of difference betweenthis system and that of squares are these, firstly, that the p
. Transactions. be observed that the plants in any one row are exactlyopposite to—that is to say they are at right angles to—the plantsin adjacent rows. The system of triangles differs essentially from the system ofsquares, as will be seen from Fig. 2. Where the plants are set outin triangles each occupies the apex of an angle, or, looked at in aanother way, each occupies the centre of the figure. The growingspace then, in this case, allotted to each plant is the area of atriangle. The two most important points of difference betweenthis system and that of squares are these, firstly, that the plants of 354 one row are not directly opposite to—that is to say they are not atright angles to—the plants in adjoining rows, but are directlyopposite to the middle points of the interspaces ; and, secondly,that the distance between the plants in the rows is not equal to,but is greater than, the distance between the rows themselves. InFig. 2 it will be at once seen that the plant e in the row i k, Fig. 2. for instance, is not directly opposite to either of the plants markedf or (; in the row ml, but it is directly opposite to thecentre of the interspace between these plants, in other words it isat right angles to the point ir. When plants are set out regularlyin this way the triangles formed are, what are called, equilateraltriangles, that is to say the three sides arc all equal in length. Thisbeing so—and regarding for tlie moment the triangle efg—itfollows that if v G be the distance between two plants in the row m lthen the perpendicular distance between adjoining rows will not beFF,,which is the same length as FG, but will be eh which is manifestlyshorter than e f, and is in fact the shortest line that can be drawn 355 between the two rows i K and m l. It is thus apparent that thespaces between the plants in the rows are greater than the spacesbetween the rows themselves. We have chosen to regard this system of planting as the systemof triangles, but we might, w
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