INTRODUCTION. 21 



will give a slope or bank about double that 

 height. A considerable effect will thus be 

 obtained ; for in a flat country a small ele- 

 vation gives a great command of prospect, 

 and adds itself considerably to the beauty of 

 a landscape, especially when planted with 

 lofty growing trees, as larches and pines. An 

 undulating appearance may be given to level 

 ground, by judiciously planting the trees and 

 shrubs. 



The too general error of planting close to 

 the dwelling-house should be avoided ; for 

 although such a plantation may have a pretty 

 appearance in the infant state, a few years' 

 growth will cause it to cast a gloom over the 

 apartments, and keep off a free circulation 

 of air. Besides, as plants give out noxious 

 air in the evening, it should be more par- 

 ticularly guarded against in this moist atmo- 

 sphere. 



The training of trees to the walls of houses 

 is also objectionable, as they cause damps, 

 harbour insects, and collect leaves and other 

 substances that become offensive by their pu- 

 trefaction, whilst the view of the plants them- 

 selves cannot be enjoyed from the windows. 

 However, all offices, out-houses, and un- 

 sightly buildings, may be covered with vines 

 and ornamental climbers. 



c 3 



