December 30, 1880. ] JOURNAL OF HORTICULTURE AND COTTAGE GARDENER . 599 
the same, except that the fresh air would be thoroughly warmed 
by contact with the hot-water pipes before entering the church ; 
thus entirely obviating the necessity which exists under most 
plans of warming for admitting cold air into the building for the 
sake of ventilation. In very severe weather, or while the heat is 
being got up before the arrival of the congregation, the ventilator 
b may be closed and the flap A opened. The result then is that 
the air in the church passes into the cavity at A through the coil, 
out into the church at grating c, and, this process being continued, 
The same description applies to this as to fig. 1, except that instead 
of the wall being built with a cavity, the window recess is carried 
down to the floor, and the pipes are covered by a wooden case, 
which can be made perfectly plain or highly enriched as its 
situation and surroundings may render appropriate. 
“ Among the advantages of this system maybe mentioned the 
following. The pipes do not take up valuable space, as they do 
not project into the building beyond the inner line of the wall. 
All channels and gratings are dispensed with, and consequently 
the church becomes thoroughly and efficiently warmed with great 
rapidity. 
“ Fig. 2 shows the section through the wall of a school, institu¬ 
tion, or any domestic building at a window on any floor or landing. 
\ 
FIG.2. 
their cost. The pipes are placed in immediate contact with the 
greatest cooling surfaces—namely, the windows. It is not neces¬ 
sary to admit any cold air into the building, as the fresh outer air 
can be thoroughly warmed before being admitted.” 
Other advantages of this system are enumerated in the cir¬ 
cular, but for detailed particulars it is better to write to Messrs. 
Weeks at their Works, King’s Road, Chelsea, S.W. 
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WORK forthe WEEK..' 
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KITCHEN GARDEN. 
Forcing Department .—Continue placing fresh roots of Seakale and 
Rhubarb in the Mushroom house as may be necessary to maintain 
the succession, also plant Asparagus, supplying advancing crops with 
tepid liquid manure. Frames containing Asparagus will need night 
covering over the lights, and linings applied to the sides of the bed 
and frame to maintain the temperature. Admit air to this crop 
