4 
* 
as 
- on Rose-trees. 
APHIS. 
119 
—The Snapdragon—Annual and 
perennial plants, natives of the mid- 
dle and south of Europe, and of. 
which one species, A. majus, the 
common Snapdragon, is in almost 
every garden. ‘There are many 
varieties of this species, the finest 
of which, A. m. Caryophyjiloides, 
has the flowers striped like those of 
a flaked Carnation. All the spécies 
of Snapdragon grow in any soil that 
is tolerably dry, and they are readily 
increased by cuttings; for though 
they produce abundance of seeds, 
yet the varieties can only be perpe- 
tuated with certainty by the former 
mode of propagation. ‘The beauti- 
ful carnation-hke variety will, in- 
deed, very seldom produce striped 
flowers two years in succession from 
AQUARIUM. 
as these latter broods of aphides are 
all born alive, they begin to devour 
the plants on which they appear 
immediately. The tenth generation 
usually appears about Septeraber, 
and these insects lay eggs for the 
first brood the following spring. The 
the same root ; and thusa person who | 
has purchased a plant with beauti- 
fully striped flowers, will generally 
have the mortification the second 
year to find it produce nothing but 
flowers of the common Snapdragon, 
unless cuttings have been made from 
the young shoots of the plant, and 
the old root thrown away. As this 
best way of preventing the attacks of 
these insects is washing the branches 
of the Rose-trees with soft soap 
and weter in January or February; 
or, in short, any time before the 
buds begin to swell. When they 
have appeared, the best way to 
destroy them is te lay the infested 
branches on the hand, and gently to 
brush off the insects with a soft brush. 
Or if this be not found sufficient, to 
make a decoction of quassia, in the 
proportion of an ounce of quassia 
chips to every quart of water, and 
to dip the infested branches in it, 
, taking care not to shake them, but 
to let the mixture, which will not 
disfigure them, dry on the leaves. 
‘If any of the aphides remain after 
the first application o 
plant in its wild state is very com- | 
monly found growing on the tops of 
old walls, it may be considered as 
one of the most ornamental plants 
for placing in such a situation. 
Many of the plants formerly called 
Antirrhinum, are now removed to 
the genus Linaria. 
Apuis.—The green fly or plant-_ 
louse is one of the most troublesome 
insects to the gardener, particularly 
These insects lay 
their first set of eggs (which are 
small and black) in autumn, near 
the axils of the buds. The eggs are 
the shoots may be di 
time; or the decoct quassia 
may be made strong Quassia 
is not at all injurious to plants, 
though it is instantaneously destruc- 
tive to animal life. Some gardeners 
employ tobacco water, but when 
this is used the shoots should only 
remain a few seconds in the tobacco 
water, and then be washed imme- 
hatched in February or March, but | 
as only a few insects appear, they 
generally escape unnoticed, and, 
after twice casting their dais arrive 
attheir full growth in April. From 
/water plants. 
this period to the end of summer, | 
brood afte 
rood is produced with | 
diately in clean cold water, or they 
will become so blackened and 
withered, that the remedy will be 
worse than the insects. Snuff and 
lime-water are liable to the same 
objections, as both greatly disfigure 
the plants. 
Aqua‘rium.—A_ pond, basin, or 
cistern of water, for the growth of 
In a pond in the 
open garden, the plants may either 
be grown in pots, plunged to the 
depth of one or two feet in the 
_water, or they may be planted in the 
almost inconceivable rapidity ; and bottom of the pond. ‘The former is 
