With a scissors we cut the cardboard along the arcs and straight
lines, all but the dotted line, leaving a piece of the shape shown in Fig.
55. This piece was rolled into a cone with the right edge lapped over the
left edge and lying against the dotted line. In this position it was held
by means of several brass fasteners of the kind shown in Fig. 56.
A mouthpiece was formed out of a block of wood in which a large hole had
been drilled. The block was then cut away until the walls were quite thin.
The hole was reamed out at the top, as shown in Fig. 57, and the outer
surface was tapered so that the small end of the megaphone would fit
snugly on it.
We planned to reach our camping grounds by way of the canal, and had
provided for that purpose a large scow, which we expected to tow up to
Lumberville and drag over to the river.
The Scow.
[Illustration: Fig. 58. Side pieces of the Scow.]
[Illustration: Fig. 59. Frame of the Scow.]
[Illustration: Fig. 60. Nailing on the Bottom.]
[Illustration: Fig. 61. Sockets for Rowlocks.]
Our scow was made as follows: Two 3/4-inch pine boards, 12 inches wide and
12 feet long, were selected from Reddy's father's lumber pile. These were
used for the side pieces of the boat, and we tapered them off at the end
to a width 3-1/2 inches.
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