86 



GARDEN DESIGN 



starting point. Only back and foresights need be 

 taken, and the same stations need not be used 

 throughout. 



We now come to the application of these levels 

 to the work of moving soil to the desired line. 

 The simplest way is to consider this first as though 

 a path of uniform width was required to level itself 

 i.e. using only, and all, the soil on the place. Take 

 a line of reduced levels as in diagram 25, all 10 ft. 



DIAGRAM 25. 



apart. The area of soil in block A is - ^ X 

 I0 = 90 sq. ft. 



B is 



8 



C is 



2 



i 

 2 



X 10 = 65 sq. ft. 

 X 10 = 55 sq. ft. 



D is 6 j" 4 X 10 = 50 sq. ft. 

 4 + 2 x 10 = 30 sq. ft. 



s 



F is 2 +4 X 10 = 30 sq. ft. 



2 



Total, 90+65+55+50+30 + 30 = 320 

 sq. ft. This area and breadth of path 10 ft. gives 



