366 DE D. BERRY HART. 



been relieved, and there had been a discharge of much tarry 

 blood from the vagina. As a tumour had previously protruded 

 at the vulvar orifice, I examined carefully, and found the hymen 

 and external genitals developed, while an inch from the 

 hymeneal edge a transverse septum could be felt with a 

 lacerated tear through its substance on the left side. When 

 this laceration was dilated I could pass my finger into the rest 

 of the vaginal canal — the real Aliillerian portion. The rest of 

 the genital tract was normal. 



The second case was that of an adult woman who had men- 

 struated scantily and with pain. In her the same condition of 

 a transverse septum an inch from the hymen existed, and of the 

 condition I was able to take a cast. There was evidently a 

 small aperture in the septum, as I could dilate a sinus and make 

 a lateral canal admitting the finger. I did not detect a cervix. 

 The uterus bimanually seemed unicornuous, and the ovaries 

 were both present. 



Each of these cases had, therefore, the lower third of the 

 vagina present — i.e., that part derived from the blending of the 

 uriuogenital sinus and Wolffian ducts. Such cases are only to 

 be understood in the light of the origin of the vagina as brought 

 forward in the present investigation. 



4. Case of atresia of the lower third of the vagina, the rest of the 

 tract heijifj developed. — In this case, that of a prostitute in the 

 Eoyal Infirmary, whom I saw through the kindness of Mr Caird, 

 there was an interesting persistence of a vertical ridge both on 

 the anterior and posterior vaginal walls. The ridges differed, 

 inasmuch as the posterior one ceased about an inch from the 

 vaginal entrance, while that on the anterior wall ran along the 

 whole distance, and had quite an excrescence at its lower end. 

 The ridge on the posterior wall probably represented the 

 remains of the Miillerian septum, while that on the anterior 

 was the remains of the septum between the Miillerian ducts and 

 Wolffian bulbs. 



We can thus give the proljable antenatal date of the defor- 

 mities recorded : — 



1. Congenital perineal bowel tumour in 3rd-4th week. 



2. Septum vagina? (transverse), 6th week-8th week. 



3. Vertical ridges, 4th week. 



