Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 339
he switchboard on the other sideof the platform, testing the strength of currentson the different circuits, etc. There are alwaystwo operators on duty, sometimes three, nightand day. They work in shifts, or tours, asthey are called, of eight hours each, three toursmaking up the day. Suddenly there… … THE REPEATER. This is repeated five times, the number ofrounds the box sends in, but before the firstround has clicked off, the operator at the deskhas stepped quickly to the register, and glancesat the tape. He turns as quickly from this to acabinet in the center of the platform and at theback of…
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 339](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial241dodg-339-246.webp)
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial412dodg-107-97.webp)