70 GARDEN DESIGN 



naturally defined and straight boundaries, and 

 small enough to be taken at one stretch of a hun- 

 dred foot tape. 



To plot this to scale decide on a unit ( T V in. to 

 i ft. is convenient) and rule a line A B to represent 

 78 ft. Open a pair of compasses to the length of 

 D B i.e. 96 ft., and describe part of a circle from B 

 as centre. Alter the compasses to represent 63 

 ft. and from centre A draw enough of a circle to 

 cut the former one. The intersection is the posi- 

 tion D as it fulfills the ground measurements, being 

 96 ft. from B and 63 ft. from A. Repeat the pro- 

 cess with circles from D and B to find C, and the 

 plot of land will be truly drawn at a scale of A in. 

 to a foot. 



The problem is complicated if the length of the 

 lines to be measured exceeds the length of the tape. 

 Alongside of a fence it is a simple matter to keep 

 the line true when resetting, but if a diagonal 

 such as D B has to be laid several times provision 

 must be made for keeping the line straight from 

 point to point. If working single-handed this can 

 be done by setting stakes across the ground and 

 sighting them to a true line before putting the 

 tape across. If one has an assistant it is possible 

 to direct him by standing at one corner and seeing 

 that he has the line pointing directly to the 

 opposite corner ; or he can speedily set a row of 

 stakes with some one to direct. A small boy who 

 can do as he is told makes an efficient assistant in 



