ARRANGEMENT OF ALPINES UPON ROCK-WORK. 
223 
knowing the plants would absorb a great quantity, I also knew 
they must be allowed the means to elaborate what they had thus 
secreted, and thus far have succeeded as well as could be 
wished. They are perfectly clean, not a symptom of mildew 
about them, and, what is my only trouble, are growing yet. 
Would you advise me to begin to cover them now in order to 
prevent any more rain falling on the bed, and thus induce them 
to ripen wood ; and what sort of covering would you recommend, 
for I fully intend them to remain where they now stand through 
the approaching winter; and if they can be preserved till this 
time next year, there can be no doubt but that they will have 
filled the entire space allotted them. 
Hortulanus. 
[HBy all means keep them as airy as possible, never covering 
them unless in the case of a heavy storm. The cold weather 
approaching will effectually stop their growth, and it is only 
necessary to insure them the means of ripening the new wood 
to enable them to pass through the winter, a contingency that 
does not rest entirely with any of us, as it depends chiefly on 
the amount of sun-light they may receive. With respect to the 
protection for the winter, we should recommend a wooden 
erection something like a low span-roofed pit, with lights hung 
to the ridge, the walls or sides to be hollow, formed by driving 
stout posts into the ground at the angles and wherever neces¬ 
sary, and covered on the outside by weather-boarding, and the 
inside to be lined with plain half-inch boards, the space between 
to be filled with saw-dust, this, with a sufficiency of mats or 
other covering to the glass, will, we think, protect them safely. 
—Ed. 
ARRANGEMENT OF ALPINES UPON ROCK-WORK. 
From Lothian's Culture of Alpines. 
In placing out the plants, the proper disposal of them is essentially 
requisite for appearance, as well as to insure success in their 
culture. Therefore, the north side is to be taken up principally 
with cryptogamic plants, requiring the shade, and several strictly 
Alpine plants. To assist as much as possible, some trees planted 
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