Place the wheel in a vise and proceed by cutting the first slot very carefully. Place the tooth A of the gauge in this first slot and cut the next by holding the side of the saw close up against the end of the gauge, at B. This keeps all the teeth radiating from the center of the wheel. Cut each slot in the same manner until all of them are formed.—Contributed by George Jupp, New York City.
Homemade Level
A Bottle Filled with Water and Tied to a Straight Piece of Wood for a Level
Having need of a level, and there being no place to obtain one within several miles, I constructed one as follows: A long medicine bottle was filled with water and tied to a straight piece of wood, 2 ft. long. After setting it properly by turning the piece end for end several times, I found that it could be used with accuracy.—Contributed by Fred L. King, Islip, L. I.
A Tuberculosis Cottage
By N. F. FULTZ
The tuberculosis society of a certain locality needed a demonstration cottage for their crusade against the white plague, and they placed their need before the boys of the public-school shops. One class of eighth-grade boys volunteered, and two days after the job was started the complete cottage was delivered to the society. The material required for its construction was as follows:
| 220 | linear feet of ship-lap, 1 in. thick and 6 in. wide. |
| 80 | ft. of 1-in. flooring. |
| 6 | studs, 14 ft. long. |
| 7 | pieces for plates and rafters, 2 by 4 in., 10 ft. long. |
| 3 | pieces for sills, 2 by 4 in., 16 ft. long. |
| 100 | ft. of sheathing boards. |
| 100 | ft. of tar roofing paper. |
The cottage is constructed in sections and can be assembled or dismantled in 30 minutes. The sections are not so heavy but that they can be handled with ease by two men. There are seven sections, namely, the floor, two sides, two ends, and two roof sections. If the cottage is to be moved only a short distance, it can be loaded into an ordinary dray assembled.
Since the building is made in sections, it is well to construct the floor first, which is a simple matter. Cut two sills of the 2 by 4-in. stock, 10 ft. long. Cap these onto the ends of the five joists, which are cut from 2 by 4-in. stock, to a length that will total 8 ft. when the thickness of the two sills are added. Lay the flooring the long way of the section, bringing it flush with all outside edges. This completes the floor section.