Apropos of the very remarkable effects of the respiration of atmospheric air enriched with oxygen confirmed by MM. Crocé-Spinelli and Sivel during their last aérostatic ascent, I remember to have obtained some long time since very analagous results.

This was in the year 1832, on the occasion of the great epidemic of cholera. A young physician employed me to administer to the cholera-patients of the ambulance of the Rue Grange-Batelière pure oxygen to assist in producing re-action. We operated upon the sick in the last stage of the malady, and some were saved by the employment of this means.