β Scribed by Hymas, F. C.
No coin nor oath required. For personal study only.
The apparatus described below affords a more rapid and sensitive niethod for the detection of mustard gas than any which the writer has hitherto seen. Although based on the sodium iodo-plathate reaction, it differs from the official modifications of this iiiethod in several saiiiple, and a bubbler. Thc apparatus is very compact, nieasuriug only 24 in. by 29 .in. by 7 in., and was iuade for the writer by JIessrs. Chas. Hearson 8c Co. Ltd. It is fitted with interchangeable ground glass joints, which eliminate errors due to absorption on rubber or
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