ABNORMAL CONDITIONS OF THE URINARY ORGANS. 93 



404. A portion of the rectum of a female Child with a complete 



septum nearly four inches from the anus. This prepara- 

 tion had been dried before it was put into spirit. 



Presented by T. B. Curling, Esq., 1871. 



405. The imperforate rectum of a foetal Pig. Hunterian. 



406. A vertical section of the pelvis of a male foetal Pig, showing 



the viscera in situ. The rectum terminates in a blind 

 pouch; there is no anus. Hunterian. 



407. A similar preparation from a female foetal Pig, in which the 



vagina is also imperforate, and the uterus is largely di- 

 lated with fluid. Hunterian. 



SERIES X. 



ABNORMAL CONDITIONS OF THE URINARY AND 

 GENERATIVE ORGANS. 



Class II. DUPLICITY*. 



Subclass I. Dichotomy. 



Dichotomy affecting the kidney to a greater or less extent 

 occurs comparatively frequently. In the slightest forms the 

 gland only exhibits indications of doubling, which extend in 

 the more marked forms to the pelvis and then to the ureter. 

 Sometimes there are two pelves and ureters. The most marked 

 condition of dichotomy exhibits two distinct ureters opening 

 separately into the bladder ; the kidney has then the appearance 

 of two kidneys fused together. The opposite sides of the body 

 are commonly affected symmetrically, and sometimes the double 

 kidneys of opposite sides extend across the mesial line, and are 

 fused together by their lower edges. 



a. Of the Icidney and ureter. 



408. A small injected, double Human kidney with a double 

 pelvis and ureter ; the ureter becomes single about three 

 inches from the gland. Presented by Sir W. Blizard. 



* No specimens of the first, third, and fourth Classes have occurred 

 in this Series. 



