GRAPE COLOURING. 5 



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 



FIG. 1.- -SECTION OF A SIXTY- FEET EARLY VINERY, FOURTEEN FEET HIGH AT THE 

 HACK, 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, FIG. 2.) ccccccc, 

 two by one foot sliding shutters in front wall to work the same as the top venti- 

 lators. (See FIG. 3.) D D, 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, ' E' ' E.' This house is at an angle of 45. 

 THE BORDER PROTECTOR, E E, 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 

 cloue. 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 be 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 



