SELECTION OF TREES FOR PLANTING 65 
leaves over the whole of the 
oval top. This floral rich¬ 
ness has caused the tree to 
be widely used in the streets 
of Paris, where the Horse 
Chestnut eloquently ex¬ 
presses the French love of 
beauty. The tree does not 
require very rich soil and is 
of fairly rapid growth. On 
the other hand its leaves 
drop off during the summer, due largely to a fungus 
trouble, leaving the tree bare during the autumn months, 
while the dropping of buds, flowers and nuts in the vary¬ 
ing seasons results in much street litter. The disease that 
causes this dropping of the leaves can be largely con¬ 
trolled by spraying. The tree suffers much from insect 
and fungus attacks, as well as from boys trying to secure 
the non-edible nuts; and while its attractiveness is be¬ 
yond question, this charm is fleeting, and the tree does 
not commend itself to general use in street planting. It is 
more at home on lawns and in parks or other open spaces. 
Black Locust. —The Black Locust has many fine 
qualities for narrow streets, but it is so subject to attacks 
and serious injury from boring insects that its use is not to 
be advised in the east. It is one of the best in the western 
half of the country. 
The Conifers. —While highly ornamental for lawns 
and parks, or other open places, the Pines and kindred 
trees, classified as Conifers, have no place in street plant¬ 
ing. The mere fact that they are evergreens is enough 
to bar them from this usage. Their winter shade is unde¬ 
sirable and in addition to this, they do not yield readily to 
pruning. Besides which, the normal shape of many of 
5 
