PERITONEAL RELATIONS OF THE MAMMALIAN OVARY. 45 



Finally, I -wish to thank Professor Young for many valuable 

 suggestions, and for his kindness in allowing me to make use of 

 several specimens, and my colleague, Dr. Paterson, for the drawing 

 of the ovarian capsule of Cynocephalus porcarius. 



EXPLANATION OF PLATE IV. 



o. Ovary. 



s. Wall of ovarian sac. 



v. Uterus. 



b. Broad ligament. 



c. Cavity of ovarian sac. 

 /. Fallopian tube. 



/'. Orifice of Fallopian tube. 



Fig. 1 represents the ovary, Fallopian tube, and simple peritoneal 

 sac of a cat. 



Fig. 2 represents the more completely-formed sac of Cynocephalus 

 porcarius. 



Fig. 3 represents the ovarian sac, &c, of the porcupine. 



Fig. 4 represents a portion of the broad ligament, and the ovarian 

 capsule covering the ovary of the racoon. The minute 

 orifice of communication between the ovarian sac and the 

 peritoneal cavity is also shown. 



Fig. 5 represents a section of the ovary and ovarian sac of an adult 

 mouse. 



Fig. 6 represents a section of the ovarian sac, ovary, and termina- 

 tion of the Fallopian tube in a rat three days old. 



Fig. 7 represents a section of the ovarian sac of an adult mouse, and 

 shows the fimbriated end of the Fallopian tube projecting 

 into the sac. 



