22 THE FLORIST AND POMOLOGIST. [ January, 
Downes’ Seedling Grapes last April as good as they were six months before, 
and I think that the art of keeping Grapes good for six months in the year, 
is quite as important a point of practice as that of growing them during the 
other six months. The fruit is, moreover, of more value during the first 
three months of the year than at any other time. 
Knowsley. James Freeman. 
TAYLOR’S COMBINED IIOT-WATER PIPE. 
’HIS new hot-water pipe has been invented by Mr. W. Taylor, of 
Nursling, for the purpose of heating, ventilating, and vaporising hor- 
ticultural structures at one and the same time. The houses in which 
it is used, admit of being constructed with fixed sashes—no small 
advantage in regard to the cost of construction ; they simply require 
an air-shaft, fixed at one end and carried up above the roof, to produce the 
vacuum impulse, by which the body of the atmosphere may be continuously 
changed. .It consists of an ordinary 4-inch hot-water pipe ( a ), on which 
is cast an air-and-vapour chamber (b), provided with 
two apertures, one to admit a 2-incli tube (c), for the 
supply of fresh air, to be carried through the external 
wall, or connected with an air drain inside the house ; 
the other an opening (d), for the continuous discharge 
into the house, night and day, in fair weather and foul, 
of a stream of heated air, which may be either dry or 
moist, according as the chamber is or is not charged 
with water, the latter when required being supplied by 
the aperture d. The air shaft above referred to, serves for the egress of the 
heated air, the place of which is supplied by that drawn through the pipes 
from the external atmosphere. 
The advantages to be derived from the gentle stream of pure, fresh air, 
which is thus constantly carried into the house, are well known to practical 
gardeners; and Mr. Taylor, who cultivates Winter Cucumbers most exten¬ 
sively and successfully, attributes his success in great measure to the use 
of this mode of heating and ventilating his houses. It is intended that 
