28 GARDEN DESIGN 



of the rise above the original level is turfed, so as 

 to give the appearance of the mound being a bare 

 cap of soil on a natural elevation. The highest 

 point need not necessarily be in the centre. Mounds 

 that are thrown up for screens may have to be 

 longer than is in pleasant proportion to their 

 width, and variety may be obtained by making 

 one side steeper than the other. The southern 

 aspect should be the gentle slope, being more liable 





DIAGRAM 7. 



to dry up in summer, but it is even more import- 

 ant that the side least in view should be the 

 steepest. 



Where the ground possesses natural knolls and 

 hollows these should be preserved, and increased 

 when more effect is required, and it may be taken 

 as a general rule in planting over uneven ground 

 that the higher points be planted in preference 

 to the hollows. Besides accentuating the form 

 of the surface, the elevated trees give a fine silhou- 

 ette against the sky. 



The photograph (page 28) of a valley planted 



