feet high at five and six years of age and are quite effective as windbreaks. 

 Mature locust trees attain 50 to 65 feet and Lombardy poplars from 75 to 90 

 feet in height. 



Black locust and honey locust must not be confused, as the latter grows 

 slowly and is not desirable for the purpose under discussion. Considering all 

 the qualities and habits of trees in common use, the black locust is the most 

 desirable deciduous tree for general planting on coarse soils. It grows rapidly 

 and spreads considerably. Next in importance come the Lombardy and 

 Carolina poplars, which are tall and slender. They differ in shape, but not 

 sufficiently to affect materially the manner of planting. The Carolina poplar 

 is conical, or pyramidal, when young^ and when mature more spreading through- 

 out than the Lombardy. It has an objectionable habit of shedding part of 

 its foliage prematurely during some years. Figure 5-b. 



Small, hardy plants are necessary for use on the windward side of large 



Figure 2. (a) Russian oleaster, Elaeagnus angustifolia, eight feet tall at three years of age. 



September 14, 1914. 

 (b) Russian golden willow, the same height and age. 



8 



