PIl!;rAL SHAPING OF THE SURFACE. 



317 



corners of the house, a, 1), c, d, of the same figure, all to 

 project say two feet above the ground. Then determine 

 where the final grade line is to be, at the point where each 

 stake stands, marking the same on the stake. Now 

 measure up on each stake one foot from the grade mark, 

 and cut a notch. By next stretching a line — or sighting 



((.'ili ■""■"•;■ •'"■i^""""'",Fu, ,« ""'""7:3 "-s ~~s 7^4' 



Fig. 135.— FINAL SHAPING OP THE SUBPACE. 



for long distances — from notch to notch thus made on 

 any two stakes, such a line — called the datum line — it is 

 plain, will be one foot above the desired grade as marked 

 on the corner stakes. By setting a row of stakes at in- 

 tervals of say twenty feet between the corner stakes, along 

 the border, and a corresponding number which will come 



