Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 104
THE UNDER SIDE OF THE BALANCE-WHEEL. This regulates the speed (Magnified about five times.) machinery of a watch from which he hasmoved this outer plate, and to explain it to re-you. NATURE AND SCIENCE FOR YOUNG FOLKS 73 … TWELVE TINY SCREWS AND SIX JEWEL-PINS. AN ESCAPE-WHEEL. AN ESCAPE-PINION. (Magnified and photographed with the head of a medium-sized pin to show relative size.) THE WONDERS OF A WATCH It is a matter of every-day occurrence for aperson to say to his watchmaker, Here is a
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial], 1873, leaf 104](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial401dodg-104-120.webp)
