HOME GROUNDS 129 



ing a beautiful line. The line of stakes may be in 

 the center or at one side of the proposed walk, and 

 measurements can be taken from each stake at right 

 angles to the line to determine the location of the 

 "form" at the edge of the walk. The profile or 

 line determining the grade or vertical position of 



/A 



FIG. 27. THE WALK. Dots show stakes for center line of road. This curve 

 gradually approaches a straight line at point of reverse C. The continuous 

 curve is better than arcs of circles with straight lines. 



the walk may be fixed in much the same way by 

 driving the stakes to a pleasing vertical curve. 

 Instead of sighting over the tops of the stakes, it 

 is more convenient to have three T's or rods of 

 equal length, say four feet, and sight over the tops 

 of these when they are held vertically resting on 

 the tops of three consecutive stakes. Two as- 

 sistants will be needed to hold these rods, the one 



