aready ing will henceforth form a part of the art of war, for, by means of moving the carbon with a gentle, continuous BY GEO. M. HOPKINS. pressure. , order of ‘the War Office, a balloon equipment has been In the Reynier and Werdermann systems of electric light- This lamp is as simple in its… … = The lamp shown in the engraving seems to yield results of the pencil and the carbon block forming one of the elec- of the box. equal to those obtained from the more expensive apparatus, The free end of thespring, D, rests against the diaphragm, trodes. In the Reynier system the carbon block is in…
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