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Total cost of greenhouse $81.00

Level off a place about 22 x 12 feet, and set in the posts as indicated
in the plan on page 158, taking care to get the lines for the ends of
the house perfectly square with the wall, and exact in length. This is
best done by laying out your lines first with stout string, and making
your measurements accurately on these. Then put in the posts for sides
and ends, setting these about three feet into the ground, or, better
still, in concrete. Put in the two corner posts, which should be square
first. Next saw off all posts level at the proper height, and put in
place the 2 x 4 in. eaves plate on top of these and the 2 x 6 in. sill
just far enough below to take a 16 x 24 in. light of glass, with its
upper edge snug in the groove in lower side of plate, as shown in detail
of section on page 159. Fit the 2 x 6 in. sill about the posts so that
the mortice on same will just clear the outside of posts. Then put on
the siding on sides and ends--first a layer of rough inch-boards,
running vertically, a layer, single or double, of tar paper, and a
second layer of boards, laid horizontally, covering on the outside with
shingles, clapboards or roofing paper. The five 7 ft. x 1-1/4 in. pipe
posts may now be placed loose in their holes, and a walk dug out of
sufficient depth to allow passage through the middle of the house. Rough
boards nailed to stakes driven into the ground, will hold the earth
sides of this in place.

Next, after having it sawed in two vertically (thus making 20 ft), screw
the ridge securely to side of house at proper height, giving a thick
coat of white lead at top to insure a tight joint with house. Now put
one of the end bars in place, taking care to get it exactly at right
angles with ridge, and then lay down the sash-bars, enough more than 16
in. apart to allow the glass to slip into place readily. Take a light of
glass and try it between every fourth or fifth bar put into position,
_at both ridge and eave_, as this is much easier than trying to remedy
an error when half the glass is laid. Use "finishing" nails for securing
the sash-bars, as they are easily split. Next, with chalk line mark the
middle of the roof sash-bars, and secure to them the one-inch pipe
purlin, which will then be ready to fasten to the uprights already in
place. Next, make concrete by mixing two parts Portland cem