h thoroughly on
a stove at a temperature above 212i Fah. Melt the wax and resin
together, and stir in the powder by degrees. Stir until cold, lest the
earthy matter settle to the bottom.

The Correct Meaning of the Tonnage of a Vessel.--The law defines very
carefully how the tonnage of different vessels shall be calculated.
An approximate rule for finding the gross tonnage is to multiply the
length of keel between perpendiculars by the breadth of vessel and
depth of hold, all in feet, and dividing the product by 100. It is
generally assumed that 40 cubic feet shall constitute a ton, and the
tonnage of a vessel is considered to be the multiple of this ton,
which most closely corresponds with the internal capacity of the
vessel.

A Recipe for Re-inking Purple Type Ribbons.--Use: Aniline violet, 1/4
ounce; pure alcohol, 15 ounces; concentrated glycerine, 15 ounces.
Dissolve the aniline in the alcohol, and add the glycerine.

The Process of Giving a Tempered-Blue Color to the Steel Plate and
Malleable Iron Castings of a Roller Skate.--In order to obtain an even
blue, the work must have an even finish, and be made perfectly clean.
Arrange a cast-iron pot in a fire so as to heat it to the temperature
of melted lead, or just below a red heat. Make a flat bottom basket of
wire or wire cloth to sit in the iron box, on which place the work
to be blued, as many pieces as you may find you can manage, always
putting in pieces of about the same thickness and size, so that they
will heat evenly. Make a bail to the basket, so that it can be easily
handled. When the desired color is obtained, dip quickly in hot water
to stop the progress of the bluing, for an instant only, so that
enough heat may be retained to dry the articles. A cover to the iron
box may sometimes be used to advantage to hasten the heating. Another
way, much used, is to varnish the work with ultramarine varnish, which
may be obtained from the varnish makers.

Cement to Mend Iron Pots and Pans.--Take two parts of sulphur and one
part, by weight, of fine black lead; put the sulphur in an old iron
pan, holding it over the fire until it begins to melt, then add the
lead; stir well until all is mixed and melted; then pour out on an
iron plate or smooth stone. When cool, break into small pieces. A
sufficient quantity of this compound being placed upon the crack of
the iron pot to be mended, can be soldered by a hot iron in the same
way a tinsmith solders his sheets. If