Physician; born Jan. 10, 1862, at Grodno, Russia; studied medicine at the universities of Kiev and Berlin, graduating as M.D. from the latter in 1884.

Einhorn worked for a time with Ehrlich and Salkowski, and then went to America, settling in New York city. In 1885 he was appointed house physician in the German Hospital at New York, but relinquished the post in 1886 to engage in private practise. In 1887 he returned for a few months to Berlin, where he acted as Ewald's assistant.

On his return to New York Einhorn occupied himself with questions relating to the pathology of digestion. In 1888 the New York Post-Graduate Medical School appointed him instructor in diseases of the stomach and intestines, and in 1898 he was appointed assistant professor at that institution, and in 1899 professor. He has also for several years been physician to the German Dispensary of New York.

Einhorn is the inventor of many new instruments and pieces of apparatus which have become well known throughout the medical world, such as the fermentation saccharometer, the stomach-bucket, the gastro-diaphane, the deglutitive stomach electrode, the stomach spray apparatus, the gastrograph, etc.

Einhorn's literary activity has embraced nearly the whole domain of stomach pathology.

H. R.
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