Deep breathing : as a means of promoting the art of song, and of curing weaknesses and affections of the throat and lungs, especially consumption / by Sophia Marquise A. Ciccolina ; translated from the German by Edgar S. Werner.

Licence: Public Domain Mark

Credit: Deep breathing : as a means of promoting the art of song, and of curing weaknesses and affections of the throat and lungs, especially consumption / by Sophia Marquise A. Ciccolina ; translated from the German by Edgar S. Werner. Source: Wellcome Collection.