EXPERIMENTALLY PRODUCED EXTRAUTERINE PREGNANCY. 6l 



(b) Some distance from the embryo we see the cut wall of the 

 uterus. 



(c) In the direction towards the tube we see the musculature 

 of the uterus, in the opposite direction the epithelium with the 



-~h 



Fig. I. Low power, a, embryo; b. Fallopian tubes; c, everted walls of the 

 uterus. 



A more detailed explanation of the figures is found in the text. 



Figs, i, 2, 3, 4 and 6 are from micro photographs. Fig. 5 from a drawing. 



glands and the connective tissue is visible. In the detached part 

 of c the glands have the character of mucous glands. At this 

 place the mucosa of the uterus is everted as a result of the incision. 

 If we follow on further sections the position of the placenta which 

 surrounds the embryo proper, we find that at some distance from 

 the embryo proper it dips into the peritoneal side of the uterus 

 at a place above the beginning of the incisions, where therefore 

 the uterine lumen is still intact, and it even penetrates into a 

 fissure of the musculature of the uterus. Further downwards 

 the embryonal placenta extends to the peritoneal tissues of the 

 upper part of the incised uterus. Fig. i of course represents only 

 one section while the description which we just gave is based on a 

 study of a number of serial sections. The egg embedded itself 



