related this case: J. M., aged 20, WitIst swimming in the open sea was struck in the face by a wave. He immediately felt a choking sensation, was unable to swim on his breast and made his way to shore by swimming on his back. Some of those on the shore slapped him on the back to displace the false teeth that he told them were choking him; the first slapping on the back produced dyspnoea. He got black in the face; a further slapping on tbe back got rid of the dyspnoea, though it caused him much

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... ain. On admission to hospital a probang was passed and the patient experienced so much relief that it was felt that the denture had passed into the stomach. Soon afterwards pains in. the pyloric end of the stomach were complained of, and they continued for some days. Mr. Johnston decided on treating him with sandwiches containing a thin layer of cotton wool in each. A week after admission he got Ii drachm of compoundliquorice powder, which acted as an aperieat, and got rid of the denture, which was found rolled in cotton wool in his faeces.