298 CURSORES. 



pretty large duct, whose coats are much, thinner than in the other 

 gland, forwards and upwards, getting between the inferior oblique and 

 the adductor, and so to the inner angle of the eye, where it perforates 

 the tunica conjunctiva, or rather the membrana nictitans near its root. 

 This I take to be the true lacrymal gland. 



There is a glandular body [nasal gland] contiguous to the external 

 gland, lying on the temporal muscle and ball of the eye just under the 

 skin. It is very vascular, and when cut into it is like a fine sponge, 

 but whether it has a duct or not, I don't know. 



The stomach will be described from the preparations 1 . At the 

 termination of the stomach there is an enlargement, which is rugous 

 on the inside, very much like the fourth stomach of ruminating animals. 

 The intestines differ from those of all other birds that I know. The 

 duodenum passes out of the stomach on the right side as usual: it 

 passes down for about a foot or more, then makes a turn upon itself as 

 far as the stomach ; but before it reaches so high as this part, it makes 

 a little fold upon itself; when it has got as high as the stomach it is 

 folded or bent backwards, and passes down again, but this last turn is 

 behind the others. This part is attached to the mesentery on its right 

 edge, and as it passes down, becomes more and more loose, and at last 

 becomes a loose intestine. After continuing loose for some way, it 

 passes more and more forwards towards the left, and upwards, and 

 attaches itself to the posterior surface of the mesoduodenum, and then 

 gets wholly behind the root of the mesentery, where it is joined by the 

 two coeca. In all this last turn upwards, towards the left, behind the 

 mesentery, the ileum is attended by the two caeca, one on each side, 

 which are attached to it by a membrane, and at the upper part all these 

 are united together, viz. duodenum, mesentery, caeca, and ileum. 

 From thence it passes down, answering to the rectum in other birds, 

 but of much greater length, and becoming a loose intestine again. The 

 rectum opens obliquely into a reservoir, so as to prevent in some degree 

 a regurgitation ; and as this is somewhat similar to the valve of the 

 colon in other animals, the part below it might alone be reckoned the 

 colon : but I shall keep to the general principle, viz. that all the intes- 

 tine below the caeca is colon and rectum. At the beginning of this 

 part of the intestinal canal, the valvulae conniventes commence, and are 

 continued along it for about 6 feet. This gut is largest at the begin- 

 ning, and becomes smaller and smaller ; the valves decrease in size, and 

 become fewer and fewer, till at last there are none at all 2 . There are 



1 [Hunt. Preps. Phys. Series, Nos. 533, 584—586.] 

 * [lb. Nos. 677—684, 689—692.] 



