the regarded simply as one step in the solution of the being hard drawn. Iron, steel, nickel, and nickel-steel problem of aerial navigation, and not altogether as an slighter portions like the canvas wings and propellers, increase in volume by magnetization, but cobalt shows abject failure. and… … THE FAILUEE OF LANGLEY'S AEEODEOME. ful working of the machine is in no way affected by which proved abortive. Prof. C. L. Manley, one of ed in a nickel-steel containing 29 per cent of nickel, Prof. Langley's assistants, entered the 60-foot aero- in which it is in a strong field forty times that of…
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