PITS AND FRAMES. 119 
The ‘‘ box” is to be made of lin. or 1hin. boards, tongued 
and grooved and beaded at the edges. If the box, as usual, 
is to be deeper at the back than in front, a Yin. or 10in. 
board ripped down diagonally, or cornerwise, will afford 
a sufficient slope, half being fixed on each side, on the 
top. Remember that all the boards must be fixed with 
the tongued edges up—this is important. The box should 
not be made more than 5dft. Yin. in length, over all, to 
allow for the slope of the light and for this to overhang 
a little both top and bottom, when closed, but it must 
be a trifle wider than the light—tin. is plenty—to allow 
of the latter moving freely up and down. Nail the boards 
tightly together at thé corners, when all are cut and fitted, 
and then strengthen the corners with pieces of 34in. by 34in. 
quartering, ripped down diagonaily, or cornerwise, so as to 
give a triangular section, fitting them inside the box, and 
nailing or screwing the ends of the boards firmly to them 
on every side. Now we want a couple of lengths, 6ft. 6in. 
each, of 4$in. by 2in. batten, neatly planed up and lightly 
champfered off on the upper edges, nailing them on each 
side of the frame, along the top, and outside, so as to stand 
up 2in., or the thickness of the light, above the box. These 
are to act as guides. Fit the light so as to run easily, and 
see that it does not catch on the upper edges of the box, top 
or bottom. Give the box three coats of paint—dark green 
or blue, or lead colour—and glaze and paint the sash, and 
the job is complete. 
Frames and lights may of course be made of any size, 
for particular purposes. Those to be fixed over propagating 
beds in warm houses are often made about 2ft. or 23ft. 
deep, and 3ft. or so in width, according to the breadth of 
