Vistas 



63 



the screen as close up to the building as they may go, in order 

 to use the least possible number — therefore at the greatest 

 distance from the porch. 



So we find the rule to be that when the object is larger than 

 the space from which it is to be screened, economy in numbers 



The relative sizes of object to be screened and view point determine 

 the location and size of the screen 



is served by shortening the distance between the screen and the 

 observation point. But when the object is smaller than the 

 region from which it is to be excluded, the reverse is true. 

 Fewer shrubs will be required if the distance between screen 

 and observation point is extended to the fullest degree. 



The material to be planted cannot be decided upon tmtil the 

 position of the screen is thus determined, as its selection depends 

 greatly, of course, upon the amount of space allowed. Naturally 

 evergreens are the things ideally adapted to screening, for they 

 fulfil the purpose winter and summer. If it is not possible to 

 plant a screen entirely of them it is well to make them form a 

 large portion of every such group. 



Lack of space need not exclude them. A wall of hemlock will 

 take up as little room as a wall of stone or brick, and it may be 



