8vo. xiv, [2], 206pp. With a half-title. Original publisher's printed powder blue wrappers. Lightly rubbed and marked, slight loss to foot of dulled spine, early inked ownership inscription to head of upper wrapper. Internally clean and crisp.

The sole edition, in original state, of Swiss physician Auguste Châtelain's (1838-1923) survey of common errors and prejudices in the field of medicine; published at the invitation of the Société neuchâteloise pour l'avancement des sciences sociales.