VOL. XIII.] PHILOSOPHICAL TRANSACTIONS, 67I 



had of being so nice in this, as some other parts; and it being kept so long be- 

 fore I had it for dissection, it was rendered less fit for such inquiries. Falco- 

 burgius says the length of all the guts were 34 geometrical feet; ours measured 

 more. The structure of the colon here seems extraordinary. Some such gut 

 I find in a goat, making several spiral windings in the middle of the mesentery; 

 but then taking a compass round, near the verge, to which are fastened the 

 lesser intestines, at last it passes into the rectum. So in a woodcock there is 

 such a spiral gut. But in our tajaqu not only the stomach, gut, and mesentery 

 were extraordinary, but the mesaraic vessels too ; for in men and dogs, &c. 

 making the segment of a circle near the middle, they then send out several 

 large branches towards the intestines ; which as they approach them by their 

 mutual inosculation, forming several small arches, from whence issue numerous 

 lesser branches to the guts themselves ; but here, in our hog, we observed a 

 large vein and artery, running a small and equal distance from the intestines; 

 and from them arising an infinite number of lesser, but straight vessels; which 

 going to the guts so regularly, and in so great numbers, afforded a very pleasant 

 sight. 



The spleen was about 10 inches long; almost of the same breadth through- 

 out; and in the middle was one inch and half broad ; it was of a lead colour, a 

 little speckled or marbled. The liver consisted of 4 large lobes ; and was of a 

 dark red colour. It appeared plainly glandulous, and had no vesica fellea; 

 which is the more remarkable, since our common swine have a large cystis 

 fellea. But it had a ductus bilarius, which went from the liver to the duodenum 

 as usual. The pancreas was about 5 or 6 inches long, and consisted of several 

 glaiids. 



The testes were 2 inches long; larger at the upper end, then the lower, and 

 in the middle about an inch broad; they were placed in the scrotum; their 

 colour white; their structure close; so that the vessels which composed them, 

 did not so plainly appear as in an ordinary boar: yet no doubt their whole com- 

 pages was vascular, though here closer wrought together and united. Vauclius 

 Dathirius Bonglarus'''' discovered this vascular structure of the testis of a boar, as 

 also of a man about 10 years before Reg. de Graaf published his book, De Or- 

 ganis Virorum Generat. inservientib. and has given good figures of the same. 

 Though the latter has given a much larger and further account of this subject 

 since. Their use is no doubt to prepare the semen; which is conveyed thence 

 by the vasa deferentia to the vesiculae seminales. These deferentia arise near 

 the lower part of the testes; and are so inserted that they might almost equally 

 empty themselves, either into the vesicae seminales or urethra. 



♦ Vid. Philosophical Transactions, N° 42, 



