Author: Baron, J.
Title: Recherches, observations et expériences sur le développement naturel et artificiel des maladies tuberculeuses: suivies d'un nouvel examen des doctrines pathologiques sur la phthisie tuberculeuse, les concrétions hydateuses, les tumeurs serophuleuses, squirrheuses, cancéreuses, etc.
Description: 1825 (1st French ed.) vii, 509, [1], 25, [2] p., 6 (5 col.) engraved pls, contemporary red hcalf, spine gilt. First French edition, translated by V. Boivin who added 25 pages ('Additions à l'ouvrage précédent') at the end of the work. One of three pathological works on tuberculosis written by the noted Gloucester physician John Baron. Baron believed that tubercles were ''hydatids'' become solid. Hydatids were then believed to be almost any kind of vesicle filled with fluid, even cysts of the ovary. In the course of his practice, Baron found (in post-mortem examinations) a good many cases of tubercle of the serous membranes which appeared to him to suit the 'hydatid' theory. He focussed on tubercles of a peculiar form. These were mostly suspended by a stalk, of 'a pearly hue and cartilaginous hardness', with numerous small blood-vessels converging to the apex of the tubercle and spreading in a plexus over its surface. His 'hydatid' theory is now completely discredited, but Baron's description of a variety of hanging tubercle in man, the same that has its proper habitat in the bovine species, is not likely to lose its interest.

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