222 LANDSCAPE-GARDENING 



tenance is left to city planners and engineers, the 

 special domain of the landscape-gardener or land- 

 scape-designer being to protect the appearance of 

 the great out-of-doors. It is his mission to plan 

 the most effective arrangement of trees and other 

 growth, to protect views, hide unsightly objects, 

 preserve sunshine and everything that makes for 

 beauty. 



In cities one great obstacle to the development 

 of beautiful streets which does not prevail in the 

 country is smoke. Trees make a city beautiful. 

 Even if the architecture is ugly, as it too often is, 

 large healthy trees would redeem the city. But 

 smoke kills the trees, and although attractive streets 

 and buildings are planned, it will be impossible to 

 have really beautiful cities as long as the atmos- 

 phere is polluted with smoke. There is a partial 

 remedy in smoke-preventive devices and in care in 

 feeding coal to furnaces, but probably the most effec- 

 tive prevention of smoke in cities will come with 

 the development of electricity at the coal mines and 

 the carrying of heat, light and power by means of 

 wires instead of on freight trains, trucks, wheel- 

 barrows, and shovels. 



