New York: 1935. unbound. 5 single-sided, folded vellum sheets with lovely hand-colored illuminations and typography, followed by the signatures. Thin 8vo. New York, 1935. First Edition. A finely preserved piece of unique ephemera with striking calligraphy. fine.
"Einhorn is the inventor of many new instruments and pieces of aparatus 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." -Herman Rosenthal.