Brick or stone are preferable to woodwork, as heat and moisture in the grapery are quickly destructive to wood foundations.
The grapery is to be heated by four rows of pipes, the object being to force early.
Light, heat, moisture and good ventilation are all required in the grapery.
Mildew is usually brought on by a sudden change of temperature or by draughts in the grapery.
It is less than twenty-five years since the first cold Grapery was erected on the Hudson.
