14 Jackson's Dissection of 



one-fourth to one-third of an inch thick at the free extrem- 

 ity ; towards the urethra it became much thinner, and had 

 on its external surface a very thin fascia, giving to the 

 whole, before being cut open, a striking resemblance to the 

 gizzard of a bird ; this same structure I have lately met 

 with in a ram from Africa, and it is said to be found in 

 the ruminants generally. 



Vagina ten and one-fourth inches in length from the open- 

 ing of the urethra ; transversely, on the inner surface, three 

 and one-fourth inches at the meatus, six and three-fourths 

 inches midway, and five and one-fourth inches at the upper ex- 

 tremity. Lining membrane thick, dense and polished ; lon- 

 gitudinal rugae towards the meatus, but they become very 

 fine and irregular higher up. Muscular coat distinct through- 

 out, though for the most part very thin ; fibres longitudinal ; 

 more developed towards the outlet, and measured there from 

 two to three lines in thickness. 



The Uterus, being cut open, measured from its commence- 

 ment to the bifurcation internally two and one-half inches, 

 and to the same externally five and one-half inches ; trans- 

 versely, on the inner surface, four inches at commencement, 

 and three and one-eighth inches at bifurcation. The left horn, 

 cut open, was five and one-fourth inches long, two and seven- 

 eighths inches transversely near its commencement, but after- 

 wards becomes smaller. Parietes varied from one and one- 

 half to three lines in thickness. Upon the inner surface of 

 the uterus were five or six irregular, transverse folds, which 

 gradually became less marked from below upwards, the last 

 half inch being quite smooth. Inner surface of the left horn 

 somewhat rugous towards the free extremity, but smooth 

 towards the uterus ; muscular coat again well marked, but 

 became thinner towards the extremity^ Left Fallopian tube 

 six inches long and rather smaller than the human ; projected 

 two lines into the cavity of the uterus in the form of a con- 

 ical papilla ; the other extremity extremely tortuous and ter- 

 minated in an expansion of peritoneum, which almost com- 

 pletely invested the ovary. 



The Left ovary ^ one and one-half inches long by one inch 



