THE GRAPE VINE. 29 
ON THE USE OF LIQUID MANURE. 
Liquid manure may in most cases be given to vines 
once or twice during the summer, but I am of opinion 
that the kind to be used is very clearly indicated. I 
consider that guano is not good, as it may cause mildew. 
There is nothing better, if so good, as diluted cow-dung 
or sheep-dung. This should be given to weak vines 
as soon as they have made enough wood to show the 
bunch, and if they are strong it may be given to them 
as soon as the fruit is thinned out. One or two good 
soakings with this may be given during the advance of 
the fruit to maturity, but not after it begins to colour. 
The whole of the ground containing the roots of the 
vines should be saturated with this liquid manure. 
THE LATE VINERY. 
Plate 12 shows the roof of a good late vinery at 
an angle of 45°, which may or may not be double- 
glazed ; but for keeping late Grapes through the winter 
I advise to double-glaze such houses. The advantages 
are obvious: first, double-glazing prevents condensation 
of the vapour arising from the warmer air of the 
interior upon the glass below, and consequently upon 
the fruit; and secondly, the double glass maintains a 
more even temperature, for, by a free circulation of 
fresh air, and a little fire heat to warm the pipes G, 
no mildew can settle upon the bunches, nor other ill 
effects arise from long keeping. 
In this case, as in that of the early vinery, the 
border protector, Cc, will be quite necessary from 
November until March, when the glass may be removed 
