644 Town Planting. 
depended upon, even at a sacrifice of variety. Tufted plauts, 
like the Statices, Thrift, Saxifrages, Sedums, Polyanthus, 
Double-crimson Daisy, Phlox subulata, Candytuft, Pinks, 
Aubrietia, Arabis albida, and Alyssum saxatile, escape with 
little injury. Creeping plants, or such as will bear pegging 
down, like the hybrid Verbenas, Nierembergia gracilis, Lobelia 
Erinus, Helianthemum species, various Roses, ete., suggest 
themselves. Tree Ponies, Chrysanthemums, Fuchsias, New 
Zealand Flax, and many otber slightly tender things, will 
succeed well in warm sheltered localities. We might go on 
enumerating species of different degrees of duration and har- 
diness; but, as we have already observed, a very little shelter 
is sufficient to supply favourable conditions for an almost un- 
limited number of plants. 
TOWN PLANTING. 
The ensuing remarks apply to the larger towns, where the 
sooty deposit from the immense volume of smoke daily mann- 
factured by the numerous fires renders it impossible to grow 
many plants that would otherwise flourish. There are, of 
course, other causes beside the smoke tending to destroy vege- 
tation, or prevent the luxuriant growth we find in the open 
country, amongst which we may name drought. But as smoke 
is by far the worst enemy the gardener has to encounter in 
and around large towns, it will suffice to point out the most 
suitable subjects for planting in such localities to resist its 
evil effects. All plants suffer more or less, and, therefore, we 
have only to choose those which by nature are the least liable 
to injury. Evidently deciduous trees and shrubs possess an 
advantage over evergreen species in the total annual renewal 
of their foliage. Hence it follows that deciduous species 
should as a rule have the preference. But species with 
deciduous foliage are not all equally suitable, though this 
depends perhaps nearly as much on the moisture within reach 
of their roots, as upon the deleterious effects of an impure at- 
mosphere. Taking London as an example, it will be seen that 
certain trees and shrubs grow freely, and for a month or two 
retain the freshness of spring. The Plane stands first in this 
category, and being a handsome umbrageous tree should be 
freely planted. The Common Ash, Poplars, Laburnum, Thorns, 
several species of Pyrus, Ailanthus glandulosa, and the Elm, 
