500 THE OVIDUCTS. 



ostium abdominale, and the margins of the funnel are divided 

 by deep radially arranged fissures into many lobes or fimbrise, 

 which are sometimes pointed, and sometimes rounded. On 

 the inner surface of these lobes, transverse and longitudinal 

 folds are found, which are prolonged from the mucous membrane 

 of the ampulla, and cannot be removed by stretching. One 

 of the fimbrise considerably exceeds the others in length. This 

 is the fmibria named ovarica by Henle, which is attached by 

 its peritoneal surface to the sharp and free border of the 

 ligamentum infundibulo-ovaricurn (Henle), itself a secondary 

 fold of the ligamentum latum, extending between the lateral 

 extremity of the ovary and the infundibulum. This fimbria 

 ovarica reaches to the apex of the ovary, where its peritoneal 

 investment fuses with the albuginea of the ovary. In many 

 cases, however, it does not extend as far as to the ovary, and the 

 ligament, inf. ovaricum then forms a groove or gutter. In the 

 cases where an intervening space remains between the fimbria 

 ovarica and the ovary, the intermediate sharp and naked border 

 of the peritoneal fold is invested by ciliated epithelium. 



In the Fowl a furrow always intervenes between the ovary 

 and oviduct, and I found that in this animal the ostium abdo- 

 minale offers two relations. In three cases the oviduct terminated 

 csecally, but presented an oblique incision near the apex, which 

 opened into a thin- walled funnel. The incision was situated 

 in the above-named furrow. This mode of termination, however, 

 occurred in young animals that had as yet laid no eggs. The 

 fourth was an old hen, and in this instance the ostium 

 abdominale was infundibuliform, just as in the human subject. 

 In Bufo cinereus the abdominal opening is situated at the 

 upper attached extremity in a transverse fold of the peritoneum, 

 and exhibits the same relations as in young Fowls. 



A transverse section of the Fallopian tube in Man and Mam- 

 mals shows that the lumen is stellate, and the following 

 layers may be distinguished from without inwards : 



1. The very vascular adventitia, composed of connective 

 tissue. 2. The muscular layer, chiefly consisting of circular 

 fibres, though longitudinal muscular laminae are interposed 

 amongst them to a variable extent. 3. Lastly, the mucous 

 membrane, which presents numerous folds that are partly 



