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Scientific American, Vol. 89, No. 10 (September 1903) (1903)

leaf 10

An illustration from Scientific American, Vol. 89, No. 10 (September 1903), 1903, leaf 10
,471 telegraph offices, with36,000 instruments in operation; Great Britain, 11,512offices and 38,000 instruments, and the United States,22,954 offices and 81,000 instruments. The number of telegraphic dispatches transmittedin 1900 was; Great Britain 92,000,000 United States 63,000,000 France… … Top of the Transformer Case Removed, Showing SecondaryWindings and Cooling: coils. The Transformer In Process of Construction. A ^-KilowattTransformer Shown on the Base at the Right THE LARGEST TRANSFORMER IN THE WORLD. violet light without showing any evidence of fluores-cence or phosphorescence,…

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