Miscellaneous. 235 



May, and M. Kiichenmeister forwarded some of the Tsenias of the 

 Ccenurus to Louvain, Copenhagen, and Giessen. They arrived at 

 Louvain alive on the 27th May. They were immersed in the white 

 of an egg. I kept them alive for eight days, by renewing the white 

 of egg every day. 



On the day of their arrival, at nine o'clock in the morning, half a 

 proglottis was given to each of two young sheep, about two months 

 old, and in the afternoon each of them took an entire proglottis. On 

 the 3rd June, one of them, marked No. 1, swallowed another 

 proglottis. 



The first symptoms of vertigo made their appearance on the 13th 

 June ; on the morning of the 15th, I was told that the one marked 

 No. 2 was dying. Its head was burning hot, its eyes red, its legs 

 bent under its body ; it beat with its head against the railings, and 

 turned it constantly in one direction. It was then killed. 



The upper and lower surfaces of the two hemispheres of the brain 

 presented very irregular grooves, which might be taken for the 

 deserted tubes of certain Annelida ; these have been already men- 

 tioned by M. Kiichenmeister. There were about a dozen of them. 

 At the end of these tubes there were the same number of Coenuri, 

 almost all lodged in the cortical substance of the brain. Some of 

 them were removed with the membranes of the brain. They were 

 nearly of the same size, about three or four millimetres in diameter. 

 These Coenuri as yet only consisted of a simple milk-white vesicle 

 filled with fluid. The heads (scolex) were not yet to be seen. It is 

 the hexacanthoas embryo (proscolex) a little more developed than 

 at its exit from the egg. 



These observations agree exactly with those of M. Kiichen- 

 meister. 



In the muscles, and especially in the diaphragm, I afterwards 

 found some yellowish-white bodies, which may easily be distin- 

 guished by the naked eye amongst the red muscular fibres. These, 

 as M. Kiichenmeister has stated, are only strayed individuals, which 

 are never further developed. 



The second sheep (No. i) was killed on the 29th June. It pre- 

 sented nearly the same symptoms as the former. For the last few 

 days of its existence, the right fore-leg was always bent, and in walk- 

 ing it could not support itself upon its hoofs. 



In removing the brain from the cranium, a Coenurus of the size of 

 a small nut fell upon the dissecting-table. Two other Coenuri, of the 

 same size, were found in the right hemisphere, one above, the other 

 behind ; and in separating the hemispheres of the cerebellum, I 

 found two others touching the quadrigeminal tubercles. The left 

 lobe of the cerebellum also contained one. Eight were found in all. 

 These Coenuri were nearly all of the same size, except two or three 

 which were scarcely larger than a cherry-stone. 



Through the walls of the larger ones, the naked eye could distin- 

 guish some little whitish flakes, — the indications of so many heads 

 (scolex). The smaller ones had no appearance of heads, nor of the 

 place from which they were to rise. 



The Coenuri were enclosed in a membrane of recent formation, 



