A paper cover can be quickly made by using
a piece of paper larger than both covers on the book when they are
open. Fold the paper on the long dotted line, as shown in Fig. 1.
When the folds are made the paper should then be just as wide as
the book cover is high. The ends are then folded on the short
dotted lines, which will make it appear as shown in Fig. 2. The
paper thus folded is placed on the book cover as shown in Fig. 3.
--Contributed by C. E. McKinney, Jr., Newark, N. J.
[Illustration: To Protect Book Covers]
** How to Make Lantern Slides [127]
The popularity of lantern slides, and especially of colored ones,
as a means of illustrating songs, has caused so large a demand for
this class of work that almost any amateur may take up slide
making at a good profit. The lantern slide is a glass plate,
coated with slow and extremely fine-grained emulsion. The size is
3-1/4 by 4 in. A lantern slide is merely a print on a glass plate
instead of on paper. Lantern slides can be made in two different
ways. One is by contact, exactly the same as a print is made on
paper, and the other by reduction in the camera.
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