Home › Miscellaneous Curiosities › Chap. Xci

Chap. Xci

MISCELLANEOUS CURIOSITIES (Continued).

New Mode of Telegraphy-The Telephone-The Photophone -The Phonograph-Electric Light-Elevated Railroads- Great Suspension Bridge, N.Y. City-Central Park, N.Y.

City-Egyptian Obelisk (Cleopatra's Needle) Central Park, N. Y. City-Mammoth Cave, Kentucky-Hot Springs of Arkansas.

A NEW MODE OF OPTIC TELEGRAPHY. - The use of intermittent luminous signals in ships, lighthouses, etc., is now very general; and the common method is that of bringing a movable diaphragm before a steady source of light. Thus the light is not utilized during eclipse , and it has been estimated that in ordinary systems 65 per cent. of the light is lost (in light-houses