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OX THE XOX-PEDUNCULATED HYDATIDS. 

 BY DR. ERNST FLEISCHL. 



So far as the results of a hitherto incomplete research can 

 be put forward with the plea at least that only facts shall be 

 advanced, the following account may be given. 



In the depression between the testis and the head of the 

 epididymis in Man, there is an organ that at its maximum is 

 about equal in size to two peas, but is never wholly absent ; 

 it has been recognised by many observers, and has hitherto 

 been described as the "non-pedunculated hydatids of Morgagni." 

 By Krause it has been regarded as the analogue to one of the 

 appendices epiploicre of the intestine. 



This structure, composed of richly nucleated connective 

 tissue, tra versed by nerves, bloodvessels, and wide lymphatics, 

 is invested with a layer of ciliated epithelium, which dips into 

 the wide cascal depressions and involutions of the surface, which 

 are so numerous at the 'apex of the organ. Running round 

 the base of the organ is a circular, for the most part irregular, 

 line, often perceptible even to the naked eye, which marks the 

 boundary between the "true mucous epithelium" and the flat 

 serous epithelium (endothelium) of the visceral lamina of the 

 tunica vaginalis propria, just as a similar line at the free 

 border of the ostium abdominale tuba?, and that at the base of 

 the ovary, forms the sharply defined line of demarcation between 

 the peritoneum and the germ epithelium. A canal commences 

 near the base of the organ, which, however, I cannot aver to 

 l>e constantly present, that extends towards the albuginea testis, 







