the container and preventing the access of moisture to the contents. No marking was placed on the candle, smoke substitute.

Postwar Development of Smoke Candles.—The postwar development of smoke candles has closely paralleled that of tear-gas candles. The first step was to substitute HC smoke mixture* for the British Type S smoke mixture. The next step was to standardize the size of the smoke candle so as to make it the same as the tear-gas candle and thus utilise the same container for both types. The result of this step in the develop-

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