THE EARLY GRAPERY OR FURCING HOUSE, 8 
stream of cold air to pass over and among the leaves, a 
it traverses upwards, and forces the heat out; most of the 
mildew that attacks roses and verbenas in the winter time 
is produced by this cause, and if such pants as these suffer 
surely the grape vine must share the same fate. One of 
, 
from that which is essential for its well-doing inside of the 
house ; and particularly during its more easily injured 
stages, there are the most frigid blasts to contend against 
and very sudden transitions, from dull or cloudy weathier, 
to bright sunshine; owing to which it behooves us to study 
earcfully how we proceed, and imitate as nearly as we can 
those peculiarities of natural climate which observation 
shows to be conducive to the most healthy development. 
This is more particularly mentioned , because many 
Tsons are prone to tae advantage of all the little oppor. 
tunities that oceur to admit “fresh air,” without taking into 
consideration these principles in trying to accomplish the 
object in view. 
So soon as the buds are well burst, the vines may he 
tied to the wires in their permanent position, and the heat 
very slowly but gradually increased ; if it were possible 
to be so exact, about two thirds of a degree per night and 
one each day in clear weather would be about an average, 
until 65° at night, and 80° to 90’ by day (according as it 
might be cloudy or sunshine) were arrived at. As the 
shoots continue to elongate, tie them to the side wires, but 
careful not to commence this operation too soon, as they 
are very brittle, and subject to break off at the axil when 
yong. The bunches by this time willbe readily seen ard 
