19 THE FORCING GARDEN. 
winds from the east, so that these two points require 
to be guarded against in the case of early vineries. 
THE BACK WALLS. 
Should there be no wall suitable for the construc- 
tion of an early vinery, one must be built for a lean-to 
house; for one of these at a good sharp pitch is far 
Tria. 5.—TWELVE BY SIX FEET SECTION OF CAVITY WALL, NINE INCHES THICK. 
THE BRICKS ARE BUILT UP ON THE SIDES, AND NOT LAID FLAT, AS IS USUAL 
WITH COMMON BRICKWORK. 
A wall on this plan of building, sixty feet long, 
twelve feet high, and nine inches thick, will 
cost for the bricks, at 1/. 10s., carriage included 8 0 0 
Labour (one week for mason). é = : sD 8 
Man (one week) . “ : - - : o 0 15, 0 
Lime and sand. . 0% 0 
£10 12 0 
superior for an early house than a span orhalf span. I 
feel convinced of this, for be it remembered that when 
the house contains a good, dry back wall, and the roof 
of it is lying well towards the early spring sun, the 
wall absorbs so much of the rays that it will materially 
