30 THE GRAPE. 
conduct the £55er heat away with a more than cqual 
ratio. Balancing all points, what is gained by one, is lost 
in the other, ae "a both are equally suitable. 
With regard to aspect, full south is the best, where con- 
yenience will allow. South, south-east, is sometimes re- 
commended, but, although with care, it answers well 
enough, there are the following objections. It often hap- 
pens, ‘hat the most severe cold, or lowest grade of the 
thermometer outside, is immediately before, or at the time 
of sunrise, on the clearest mornings, and the heating ap- 
paratus must not be allowed to cool down; nowas the sun 
rises direct, or nearly perpendicular from the horizon, the 
rays strike (with this aspect) very quickly upon the plane 
of the roof, which in conjunction with the internal action, 
suddenly raises the temperature, at the time when the ex- 
treme cold, and often severe winds, will not admit of air 
being given, consequently there is danger from the quick 
transition unless the greatest caution be exercised. If the 
house face full south, the sun at this time will strike more 
em al on the end, which will to some extent counter- 
the evil, and there is also an advantage in having 
greater natural warmth ater on the evening. 
The followi d plan, figs. 4 and 5, 
and description of an Early Grapery, ‘aor in care of and 
erected under the supervision of the writer, and which has 
answered every expectation, may be of service here, and 
will illustrate our own practical ideas on the subject. The 
dotted outline shows a house, which, in this example is 
: - devoted to the growth of Camellias, and, being fixed in 
: this position does away with the necessity of a shed, and 
assists in keeping the peeery tome ee The eer 
‘arrangement will apply th i alr ealy 
: and which, vould — — — wal < oe 
