508 »HILOSOPHlCAIi TRANSACTIONS. [aNNO 1683. 



to which the vertebrae of both the necks were joined, for there were 1 back- 

 bones continued all the way to the head. Though the 1 bodies seemed to be 

 but one entire body above the navel. There was only one stomach under the 

 liver in the right side, reaching under another liver in the left. The guts were 

 single till within d or 7 inches of the anus, and then a division into 1 branches, 

 one going to each fundament; below the division there were plainly to be seen 

 1 caecums, each within about 3 inches of the anus. There were 1 livers, one 

 much smaller than the other, that which was in the right side was the least, 

 the other lay lower down in the left side. They were both entire, without any 

 division or lobes. There was a vena umbilicalis inserted into each of them. 

 There were 2 arteries inserted into the liver in the left side, both coming from 

 the aorta, and these I shall call the coeliacae. There was only one inserted into 

 the liver placed in the right side. There was no vena cava below the livers, 

 for all the veins coming from the lower parts entered the livers as the vena porta 

 does naturally. There was a branch of a vein on each side, proceeding from 

 ■ the loins, inserted into the back parts of the liver, and besides these there 

 was not a branch to be seen but what was inserted into the middle of the livers. 

 There were no vesiculas felleae that I could find, and perhaps the reason I 

 could not discover any was, because of the tenderness of the livers, for they 

 were putrefied before I got the kitten. There were 2 kidneys on each side, fur- 

 nished with ureters. There was neither spleen nor pancreas in either side. 

 There was a double diaphragm meeting in the middle, between the 1 back- 

 bones, and making a membrane, which seemed to be a mediastinum, for it 

 reached up to the thymus. There were 1 hearts in it, one placed above the 

 other, and a little to the right side; it was much higher than ordinary, and 

 had a vein coming to it from the little liver in the right side, which (together 

 with 3 other small veins, one from each of the fore-feet and one from the head) 

 furnished this heart with what blood was to be circulated by it. It had only 

 one auricle and one ventricle, so that it seemed to be but half a heart. There 

 was a pretty large passage into the arteria aorta, the contrivance of which was 

 very singular; for above this heart it was made like an arch of a circle, into 

 which there was a direct passage from the heart for the blood. When I further 

 examined this artery, I found that it went down on each side on the vertebrae of 

 the backs, between the kidneys, and divided itself on each side after the usual 

 manner, after it had lent each kidney a branch, the liver in the right side one, 

 and the liver in the left side two. Below the former, a little towards the left 

 side of it, there was another half heart, having only one auricle and one ven- 

 tricle, like the former. This received little blood, but what was transmitted 

 from the large liver in the left side, by what is called the truncus ascendens of 



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