Labels of some kind are needed, and one of
the neatest things for this purpose is the embossed aluminum
label, such as is stamped by the well known penny-in-the-slot
machines to be found in many railroad stations and amusement
places.
--Contributed by Frederick E. Ward, Ampere, N. Y.
** Uncurling Photographs [38]
Photograph prints can be kept from curling when dry, by giving
them the same treatment as was once used on films. Immerse for 5
minutes in a bath made by adding 14 oz. of glycerine to 16 oz. of
water,
** Soldering for the Amateur [38]
Successful soldering will present no serious difficulties to
anyone who will follow a few simple directions. Certain metals are
easier to join with solder than others and some cannot be soldered
at all. Copper, brass, zinc, tin, lead, galvanized iron, gold and
silver or any combination of these metals can be easily soldered,
while iron and aluminum are common metals that cannot be soldered.
It is necessary to possess a soldering copper, a piece of solder,
tinner's acid, sandpaper or steel wool, a small file and a piece
of sal ammoniac.
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