520 Veterinary Medicine. 



The experimental inoculations of cattle with sputum by T. 

 Smith, Kruse, and Adami showed a decided lack of potency in 

 the bovine system, but ( i ) they do not show that the germ at 

 once perishes in the system of cattle ; (2) they do not prove that 

 this germ, if returned from the ox to man, would prove less path- 

 ogenic than if carried from man to man without the intervention 

 of the ox. (3) The observations of Bollinger, Baumgarten, and 

 Crookshank show that under certain conditions the sputum 

 bacillus can and does produce generalized tuberculosis in cattle. 

 (4) Diminished pathogenesis of the germ when passed from 

 man to cattle is no guarantee that this germ, or the slightly modi- 

 fied germ of casual bovine tuberculosis will prove equally mild if 

 transferred from the bovine to the human patient. 



Cases of Infection of Man from Ox. Tscherning, of Copen- 

 hagen, attended a young veterinarian who had cut his finger in 

 dissecting a tuberculous cow. The skin wound healed in three 

 weeks, but a subcutaneous swelling persisted, an ulcer formed, 

 and a tuberculous mass containing bacilli was removed. No 

 secondary tubercles formed.' A parallel case occurred tcv a 

 prominent American veterinarian. The disseased tissue was ex- 

 cised and the bacilli identified by the bacteriologist of the uni- 

 versity with which the patient was connected, and a permanent 

 recovery ensued. 



Pfeiffer, of Weimar, attended a veterinarian who had been 

 .similarly inoculated from a tuberculous cow. The patient, aged 

 thirty-four years, had a good constitution and no tuberculous 

 taint. The cutaneous lesion healed, but six months later there 

 was tuberculosis in the cicatrix ; pulmonary tuberculosis followed, 

 and the patient died of this two years later. At the necropsy were 

 found tubercular arthritis of the wounded thumb and many 

 vomicae in the lungs.'' 



The post-mortem wart (tuberculosis verrucosa cutis) is familiar 

 to surgeons as occurring in butchers and tanners, and there is 

 every presumption that in many cases this is of bovine origin 

 (Martin du Magny, Hanot, Senn, Riehl, Paltauf, Osier). Gerber 

 testifies that in exceptional cases this extends to the lymph- glands 

 and becomes generalized. 



' Nocard. Dictionnaire de Med. Veterinaire. Article, Tuberculosis. 

 ^ Zeitschrift fiir Hygiene, Band iii. 



