GARDEN DESIGN 



taken up, except when being carried forward in a 

 straight line, and care should be taken not to 

 start a kink in it. Letting the tape pass in be- 

 tween one's fingers is the best preventative of this. 

 The most complicated figure can be reduced to a 

 number of triangles for surveying, and to measure 

 them is only a question of time. Boundaries fre- 

 quently are irregular, or consist of an indefinite 



line such as a hedge. 

 Let A B C D (Diagram 

 19) represent a field 

 whose boundaries are 

 not directly measurable. 

 Begin by setting poles 

 as near the corners as 

 possible, at a b c d, and 

 measure the four lines. 

 A diagonal a d or b c 



DIAGRAM 19. 



must be taken. Either 



will do, and the one that affords the easiest line 

 should be chosen. Besides the diagonal one tie or 

 proof line should be taken, or if a diagonal is 

 difficult to manage two tie lines will serve instead, 

 and they should always be on the same base. In 

 the figure they both are from 6 d, and are measured 

 at 50 ft. from the corners. The irregular boun- 

 daries are obtained by offsets from the straight 

 tape. When it is down say from a to b at inter- 

 vals of 20 ft., or other convenient number, per- 

 pendicular measurements are taken from the 



