Wilbert Smith Archives Files Box 1131 11 1131-11-p031

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a which might cause reports Balloons Coiling Belloons and unl: belloons are ebout feet in Gi employod. Belloons are used in daytime. These tor. Rod or “nite colours ore thor a papor lantern lighted by @ candle c¢ light. These ore not likely to be visible to ony great eked eyo, but a bolloon with a slow oak might corry a light across the sky for a considerable distance dt a rolatively low level. ‘i Radiosondo belloons are about five or six foot in diameter, coloured whito, box at the end of a...