The Works at Creusot. New Railway Signal. railroads. A whistle is arranged on the locomotive so that it will when once opened continue sounding until shut by the engineer. The same device which turns the disk signal so as to show the danger side is extended to transmit a cur rent of electricity to a little projection between the rails. When the engine passes over this spot a metallic brush hanging between its wheels strikes on the projection and sweeps over it at the same time transmitting the current to an electro-magnet which pulls the whistle open. The latter by continuously sounding warns the engineer. Industrial Exhibition of the Franklin Institute. mentioned city from the 6th to the 31st of October next. The plan is to secure as full a representation as possible of the mechanical improvements of the last half century and all artisans mechanics manufacturers and inventors are In. Mountain and Lake Surveys in New York.A New Canvas Boat. He reduces Mount Dix to 4879 feet Mount Seward to 4348 feet and Santanoni to 4607 feet. He finds Mount Haystack and Mount Skylight to be higher than heretofore reported and gives new measures of several other mountains of im portant altitude. scribes a novel portable boat used by him upon these lakes. The boat is made of canvas and weighs only 10 pounds 8 ounces. A new signal of his own Invention iisible at a great distance was also employed by this enterprising ex plorer. The narch of Improvements. and America in about as brief a space of time as we can with our nearest neighbors. All these circumstances have tended to developed that great industry the heads of which are re presented here on this occasion—I mean engineering in a general comprehensive sense. It is to those great inventions which have so startled the world that we owe so much ; and then becomes a Society like yours which must exercise a rapid ly extending influence on the future of engineering for gen erations to come! Mr. Brassey said :—Well I know when I a
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