nks. In this tube, is a valvewhich is operated by the observer. A pull of one secondmakes a dot—a pull of three seconds makes a dash. Thusis the Morse code revealed against the sky. From LlLLUSTRATION, Paris An American engineer, Mr. Means, has invented for theservice of military scouting on board… … Summer Season at Lake Conesus, Livonia, N. Y. The Walter E. Johnson School of Aviation UP-TO-DATE METHODSWinter Season in Florida Superior Training on dual control Hydros and Flyingboats by competent Pilots under the direct suiiervisionof Walter E. Johnson, endurance record holder withthree years…
Aeronautics
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