8 Jackson's Dissection of 



half; inner surface midway and transversely ten and one half 

 inches ; twelve transverse septa, more regular than in the fe- 

 male, the two large ones which intersected them, running 

 about half the length of the cavity ; cells would have held 

 from half an ounce to an ounce ; small muscular band seven- 

 teen inches long, one inch wide, and about two lines thick ; 

 muscular coat generally thick, and the fibres transverse, being 

 in the female mostly longitudinal. Third cavity forty in- 

 ches long. Measured transversely at the left extremity 

 three inches, diminishing afterwards to two and three- 

 fourths, but without any appearance of there being an 

 intermediate cavity ; at the largest part it was fourteen in- 

 ches, at the contracted part nine, at the largest part after 

 it again dilated nineteen, and at the pylorus four inches. 

 There were about forty or fifty longitudinal plicae ; beyond 

 these the lining membrane was about one half a line thick, 

 firm and rough on the surface, and there was seen the pe- 

 culiar rugous membrane that was described in the female, ex- 

 cept that the color here was cineritious. The gland at the 

 pylorus, as it has been called, was two inches long, one inch 

 wide, and half an inch thick. 



Small Intestine of the male eighty five feet long, of the 

 female eighty and a half Just below the pylorus, and to 

 the extent of about one foot, was a remarkable dilatation, 

 the change from this to the smaller part below being very 

 abrupt ; this is well represented in Sir E. Home's figure 

 of the Bactrian camel, (pi. 24;) he describes it, however, 

 as a dilatation between the pylorus and the duodenum, and 

 not as a dilatation of the intestine itself. Being cut open 

 throughout, the male intestine measured at the dilated por- 

 tion sixteen inches ; below this, varying from two and a half 

 to four inches, and at the coecal valve five and a half inches ; 

 mucous membrane quite thin and smooth in the upper third, 

 but became more and more thick and villous towards the 

 coecum ; muscular coat quite thin and the fibres transverse. 



Aggregate glands very strongly marked and peculiar in 

 structure. In the upper quarter of the female intestine were 

 six patches, from two to eight lines in diameter, circular, 



