National Telegraphic Union · New York : N.T.U. · leaf 343
,000,000.000 B. A. Units,excelling ordinary Insulators in humid weather fully onehundred thousand fold. Its great strength and durability make it the moat economicalInsulator in use. Every report received from them is of the most favorablecharacter. MODERN PRACTICE OF THi ELECTRIC TELEGRAPH. By… … THE TELEGRAPHER: A Journal of Electrical Progress. PUBLISHED EYERY SATURDAY BT THE NATIONAL TELEGRAPHIC UNION AT Nos. 16 & 18 NEW STREET, NEW YORK. [OVER THE GOLD EXCHANGE.] VOLUME FIVE. On Saturday, August 29th, the publication of the FifthVolume of The Telegrapher will commence. It has been…
Telegraph
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