A dictionary of modern gardening - University Library

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the lights; bolts and nuts might also
be easily applied, and the interstices
rendered still more impervious to air
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FRA
substitute for the green-house ; and on
this subject we have the following
statement of Mr. Crambe, of Redbraes,
near Edinburgh :
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" Being deficient in accommodation
for heaths and pelargoniums, Mr.
Crambe procured two melon-frames,
the dimensions of which were twenty
feet long by eight wide ; he then built
walls of a few courses of bricks, inclosing
an area of the exact size of the*
frames upon which they were placed.
The floor was elevated sis inches above
the ground, level and paved with
bricks laid in finely-sifted coal-ashes,
generally suffer in them for want of
^^yj^g tj,e^rgyi(.eg l^gt^een them filled
light : if the accumulation of heat was with sand, which makes a better joint-
required, the colour should be'black.
ing than lime, the close joints of which
Raising the Frames.—It is a well-
leave no escape for the surplus water,
known difficulty that the gardener has,
placing the building in a longitudinal
in raising the frames so as to keep the
direction from east to west. As a fire-
foliage of the plants within them at a
flue would have occupied more space
determined and constant distance from
than could be spared, Mr. Rogers'
the glass. To remedy this, Mr. Nairn,
conical boiler was adopted. The
gardener to J. Creswell, Esq., of Batbojjer
is placed on the outside and is
tersea Priory, has introduced the inge
iiious contrivance represented in the ac
companying sketch and references :
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inclosed in a case of double sheet-iron,
with a movable cover, and funnel of the
same material, for the conveyance of
A, a movable frame ; b b, inside lining smoke into a brick-chimney, the space
of the pit ; c c, outer wall. Between between the case and boiler being filled
these the sides of the frame pass, and with sand as an excellent non-conduc-
are lowered or elevated by racks and tor. At right angles to the end of the
spindles, d d. Fig. 53.
pit is a brick-wall about three feet
Fig. 53.
high, inclosing the boiler on two sides,
leaving an open space in front for the
admission of air and the clearing away
of ashes. A movable wooden cover, of
a triangular form, is placed above, to
protect the whole from the effects of
the weather.
" The size of the boiler is eighteen
inches high by twelve in diameter at
the base, and is placed upon a castiron
grating, having a furnace-door beneath
for the regulation of air. The
pipes, two inches and a half wide, are
conducted along the front and secured
to the wall with iron hooks, it being
A'morc simple plan might perhaps unnecessary to convey them round the
be adopted, by having frames of the back, as the apparatus is found suffisame
length and breadth as the origi- cient to heat a space of double the size,
nal, but only from an inch to three " For fuel he has uniformly found
inches, or upwards, deep. These, as coke to maintain a constant and regunecessary,
might be put on the top, and lar heat : indeed this sort of boiler is
would be kept close by the pressure of not suited for the consumption of coal,
although, by a little alteration of the
present form, it might be made to con-
sume it as freely as coke. When the
by being faced with list. external temperature was as low as
the internal heat of the pit did not
The frame may often be made a i
20",
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