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On Vesicles in the Abdominal Cavity and Uterus, contain- 

 ing a Mulberry-like Body rotating on its Axis, and on the 

 Expulsion of the Ovisac from the Ovary. By Martin 

 Barky, M.D., F.R.S., F.R.S.E. (Communicated by the 

 Author.) 



Of such vesicles a very minute description has recently 

 been given by Keber,* who found no fewer than eighty of 

 them in seven-and-thirty rabbits. And large as the number 

 of rabbits was. this indefatigable observer discontinued his 

 researches only because no more of these animals could be 

 obtained. He opened scarcely any rabbits without finding 

 one or more of the vesicles in question. Their diameter was 

 generally about J"' '. Some were smaller, others as large as 

 1J"\ The smaller were tolerably round, the larger ones 

 mostly elliptical, sometimes tapered at one end ; and some 

 were bean-shaped. They had a fibrous membrane. Their 

 position was either on the fimbria of the Fallopian tube, or 

 on the tube itself, or on the peritoneum in its neighbourhood ; 

 sometimes on the horns of the uterus, and in several instances 

 imbedded in the mucous membrane of the latter near its 

 junction with the Fallopian tube. They were attached by a 

 ramification of bloodvessels. A ciliated and vibrating epithe- 

 lium lined the inner surface of their membrane. A mulberry- 

 like body was seen in their interior, consisting of corpuscles 

 bearing cilia, by means of which it rotated on its axis. The 

 rotations of this body lasted from an hour and a half to two 

 hours. Its diameter averaged 3 y", that of its corpuscles 

 about 2 £ o"'- Nothing like uniformity was presented by the 

 vascular condition of the sexual organs, which in this respect 

 varied greatly. Keber has given other details, not required 

 in this communication. 



In my " Researches in Embryology " many years ago, 

 vesicles such as those found by Keber were often seen im- 



* In his work entitled " Be Spermatozoorwm Introitu in Ovula" Konigs- 

 berg, 1853. — The last number of this Journal briefly noticed Keber's observa- 

 tions on these vesicles, as well as those, of the author of the present communi- 

 cation. The latter now gives a more particular account of them, and of some 

 recent observations of his own. 



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