VOL. XXV.] PHILOSOPHICAL TRANSACTIONS. 313 



The intestinum caecum in size far exceeded the colon, and was full of excre- 

 ment. Just at the entrance into it out of the ileum was another appendix of a 

 globular figure ; the tunicae of it more fleshy, and fuller of veins and arteries 

 than the adjoining caecum ; there was also a little round hole in it. The caecum 

 towards the farther end of it was small, round, fleshy, full of vessels, red 

 coloured like the jejunum in a man; the inner tunica granulated, and this for 

 more than 4 inches in length. 



The spleen was small and long, thicker at one end, it had no vesicula fellea 

 that I could find ; (in another we found the vesicula fellea manifestly :) the 

 kidneys large, and the left situate higher than the right. The glandulae renales 

 received not their vessels from the emulgents, but from great veins on each side 

 going to the loins. The stomach was full of grass (as I conjectured) which 

 smelt like the wax of a honey-comb when the honey is newly drained from it. 

 It was a female, and had long cornua uteri, but did not gestare when we cut 

 it up. It seemed to have such a cavity under the tail, above the foramen ani, 

 as I have observed in a badger. I believe now that the matter contained in the 

 stomach was fir chewed small, which the smell argued. In the mountain hen 

 (gallina montana) he found no vesicula fellea, but 2 pori biliarii opening into 

 the duodenum by 2 distinct orifices. — The interior coat of the gizzard was 

 almost as hard as horn. 



Of Hydatides inclosed with a Stony Crust in the Kidney of a Sheep. By Mr. 

 IV. Cowpevy F. R. S. N° 307, p. 2304. 

 In the sheep's kidney I found a large whitish body, inclining to yellow, and 

 tinged with red, as it lay under the membrane of the kidney. This was very 

 hard, as is usual in animal petrifactions, and 2 thirds of it lay hid within the 

 substance of the kidney: it was inclosed with a thick hard membrane, that 

 could not easily be separated from it, even with a needle fixed in the end of a 

 stick. The branches of the emulgent veins and arteries lay between it and the 

 pelvis of the kidney ; all which vessels were somewhat pressed by this petrified 

 body. As I was picking oflT its thick strong membranous inclosures, I found 

 the needle slip into a cavity at an aperture. By this I perceived that this hard 

 and heavy petrified body was hollow, and finding a membranous interstice in it 

 pulled it asunder, and found its inside divided by many petrified cells, of irregu- 

 lar figures, and filled with hydatides, of various shapes and sizes. 



Microsopical Observations on the Structure of the Spleen^ and Proboscis of Fleas. 

 By Mr. Anthony Fan Leuwenhoeckj F. R. S. N° 307, p. 2303. 

 It has been commonly observed, that the spleen is composed of a spongy 



s s 2 



