XXII. On the colouring matter of the black bronchial glands and of the black spots of the lungs

Abstract

In the adult human animal the glands designated bronchial are generally of a black or dark blue colour. These organs, which are allowed to be lymphatic glands, as is well known, are situated at the root of the lungs externally, within cellular membrane, near the bifurcated trachea ; as well as internally on or near the large branches of the bronchi.