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Keywords:
TELEGRAPHS,
SUBMARINE,
ELECTRIC,
COMMUNICATIONS,
ELECTRICITY,
SEA,
UNDERWATER,
CABLES,
CONSTRUCTION,
LAYING,
TELEGRAPHY,
WIRE,
CURRENTS,
VELOCITY,
TRANSMISSION,
BATTERIES,
INDUCTION,
GUTTA PERCHA,
INSULATION
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© Thomas Telford and ICE
1857
