Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 117
, depending upon theresistance of the coils and the distance of theclock-tower from the master-clock. You maykeep the master-clock in your own bedroom,if you like. Once every minute the wires Y and Z willcome together, energizing the magnet Q andpushing forward the minute-hand of the towerclock one… … A TREASURE HUNT ON AN ISLAND By GEORGE TASKER MILLER Assistant Dean. Division of Industries, Carnegie Institute of Teclinology. Pittsburgli, Ia.
Children's literature
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