This talk on patents was quite interesting to Fred, and very instructive to George, and they thanked their father for it.
Photographs by C. M. D'Enville
A Sun Dial Made of Concrete
An excellent illustration of the possibility which concrete offers in ornamental as well as practical construction. This sun dial, complete, cost approximately ten dollars, and may be duplicated by any clever boy. See formula for concrete on [page 20].
"Boys," he said to them next morning, "why not try your hands on a sundial? You will find it easy to make, and if properly set up it will keep accurate time. There is a nice place for one near the bridge on the new grounds, as there is a stump there, the top of which can be cut off smooth, and it stands out full in the sun.
