When the paint has dried, lay the sides out as before, and nail
on the rungs with 3-inch nails. To counteract any tendency of the sides to
draw apart, a light cross bar should be fixed on the back of the ladder
behind the top and bottom rungs.
Round off the end angles of the rungs, and apply a second coating of paint.
Note.--A ladder of this kind is given a more presentable appearance if
the rungs are let in square to the sides and flush, but at the sacrifice
either of strength or lightness, unless narrow rungs of a hard wood, such
as oak, be used. Moreover, square notches are not so easy to cut out as
triangular.
For a short ladder, not more than 9 feet long, the section of the sides may
safely be reduced to 2-3/4 by 1 inch (actual), if good material is
selected.
V. A DEVELOPING SINK.
Many amateur photographers are obliged to do their developing in odd
corners and under conditions which render the hobby somewhat irksome if a
large number of plates have to be treated. The main difficulty is to secure
an adequate water supply and to dispose of the waste water. At a small
expenditure of money and energy it is easy, however, to rig up a
contrivance which, if it does not afford the conveniences of a properly
equipped dark room, is in advance of the jug-and-basin arrangement with
which one might otherwise have to be content.
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