GENERAL DISEASES. 287 



nous or croupal character. The dog died on the third day, 

 from suffocation, after having had some convulsive movements. 

 At the necropsy, the mucous membrane of the fauces was 

 found in a pulpy condition and denuded of epithelium. Here 

 and there the membranous exudation presented the appear- 

 ance of compact, thick, adherent excrescences. The ulcer- 

 ations were blackish and very deep. The inflammation ex- 

 tended to the mucous membrane of the pharynx and larynx. 

 The heart and lungs, contained pitch-like blood and several 

 fibro- albuminous concretions. 



" This is a remarkable case, and one well worth remem- 

 bering by members of the veterinary profession, many of 

 whom have a great deal of practice among dogs ; animals 

 which, from their intimate association with mankind, and 

 from their habits and tastes, would be the most likely to re- 

 ceive the contagion, if it be really transmissible. 



"Experimental evidence as to the transmissibility of 

 diphtheria from man to animals is not very abundant, but it 

 appears to be sufficiently clear to enable careful pathologists 

 to come to a decision ; as several have concluded, from the 

 results of their attempts to produce the disease in animals, 

 that the morbid process generated in these by inoculating 

 portions of diphtheritic concretion is not simply what has been 

 designated a ' mycosis,' but is, in reality, the specific malady 

 itself. In his report on the ' Pathology of the Infective Pro- 

 cesses,' just published in that of the Medical Officer of the 

 Privy Council, Dr. Burdon Sanderson gives 2, resume oi the 

 experiments- made by the principal of these pathologists. 



" Of these observers, Dr. Sanderson points out that Dr. 

 Letzerich,* of Braunfels (Nassau), and Dr. Oertel, of Munich, 



^ Letzerich, " Beitrage zur Keimtniss der Diphtheritis," " Virchow's 

 Archiv.," vols. xlv. p. 327; xlvi. p. 229; xlvii. p. 516. "Monographie 

 der Diphtherie," Berlin, 1872. "Die Entwickelung des Diphtherie- 

 pilzes," "Virchow's Archiv.," vol. Iviii. p. 303 (1873). 



t Oertel, " Experimentelle Untersuchungen iiber Diphtherie;' 

 "Deutsches Archiv. fiir Klin. Med.," vol. viii. pp. 242-354. 



