GRAPE COLOURING. a 
It is the maintenance of a brisk circulation of heated 
air which colours grapes, and not the generally supposed 
high degree of heat without much circulation. If 
anyone wants proof of this, let him go to Texas, a 
country abounding with wild grapes, where they grow 
in vast quantities on the forest trees, the vines climb- 
ing about and over the tall pines. The temperature 
he 
a ES 
pee rat 
S$ WH 
Fic. 1.—SECTION OF A SIXTY-FEET EARLY VINERY, FOURTEEN FEET HIGH AT THE 
BACK, TWO FEET HIGH IN FRONT, TWELVE FEET WIDE; TO BE DOUBLE-GLAZED 
WITHOUT PUTTY, WITH TWENTY-ONE-OUNCE GLASS, TWENTY BY EIGHTEEN. 
Reference to plan.—a a a, sliding ventilators, worked by wires, and cords, and 
pulleys, BB. (See enlarged section of these ventilators, Fic. 2.) ccccccce, 
two by one foot sliding shutters in front wall to work the same as the top venti- 
lators. (See Fic. 3.) DD, flap shutter hinged on wall plate, to open by cords, 
for the admission of air to the house through the openings, ‘c.’ This flap 
shutter is on the vine-border protector, ‘m’‘ 5.’ This house is at an angle of 45°. 
THE BORDER PROTECTOR, EE, may be glazed with clips, which offer every facility 
for taking out the glass in May by merely loosening them, so as to lift the glass 
out, and leaving the clips there for reglazing in the autumn, which is quickly 
done. Taking the glass out in May admits of the border getting the benefit of 
the summer air and rains. The border protector may be made into sashes, which 
can e drawn off occasionally to allow of the rains falling on the borders, water- 
ing, &c. 
there averages for months 90°, but the vines are sur- 
rounded with air, and although the heat is during the 
day often as much as 110°, the nights are very cool. 
These grapes are as black as jet. Here then is the 
secret of grape colouring—a heated circulation of pure 
air. This is what we want in our vineries, instead of 
