A useful fish-scaling and skinning knife can be made of an old broken hacksaw blade. This must be at least 6 in. long and will make a knife with a 3-in. blade. Grind the blade to the shape shown and make a handle for it by using two strips of maple, 1/4 in. thick and 4 in. long. These are riveted together with 3 in. of the blade between them.—Contributed by John L. Waite, Cambridge, Mass.
Scaling Knife
To Prevent Moles from Damaging Growing Seeds
The food most liked by the ground mole is the sprouts of peas and corn. A way to protect these growing seeds is to dip them in kerosene just before planting. The mole will not touch the oil-covered seed, and the seeds are not injured in the least.—Contributed by J. W. Bauholster, Gresham, O.
The Heliograph as It is Used by Neighboring Boys to Send Messages on a Clear Day by Flashing the Sun's Rays from One to the Other, Which can be Read as Far as the Eye can See the Light
How to Make a Heliograph
By R. B. Huey
The heliograph which is used in the army provides a good method of sending messages by the reflection of the sun's rays. In the mountains there are stations from which messages are sent by the heliograph for great distances, and guides carry them for use in case of trouble or accident. The wireless telegraph delivers messages by electricity through the air, but the heliograph sends them by flashes of light.