TRANSLATIONS AND SELECTED ARTICLES. 377 



administered ten segments of Taenia serrata, all of which contained a 

 number of perfectly-matured ova, in which might be distinguished 

 the embryo with its hooks. The sheep, which had been carefully 

 selected as in perfect health, never presented the slightest symptom 

 of * staggers.' Experimenters say that the symptoms of this disease 

 are ordinarily manifested from the fifteenth to the twentieth day ; but 

 in order to avoid any precipitancy, we kept our animals for four 

 months. Though still in perfect health, they were then killed, in 

 order to ascertain whether the brain contained any vestige of Caenu- 

 rus ; but on the autopsy that organ was found perfectly sound. Con- 

 sequently, in these cases there had been no transportation of the 

 progeny of the Taeniae of the dog to the brain of the sheep. 



" Considering, therefore, the doubts which arise when we regard 

 attentively the assertions of experimenters, and those also which arise 

 upon a rational examination of the proofs, and lastly, the results of 

 our experiments, we do not hesitate to assert that the offspring of the 

 Taenia of the dog never reaches the brain of the sheep. 



" But although we deny thus strongly the transmission of the ento- 

 Eoon of the dog to the brain of the sheep, we should not be astonished 

 — ^without admitting that this is the normal course — to fiud that it 

 may be possible that the Gaenuri of the latter animal were individual 

 Taenias, which have undergone an arrest of development, owing to 

 the situation in which they have been born, and which aborted 

 Taenias, being placed by the experimenter in a more propitious place, 

 there elongate themselves, and attain a larger size than they present 

 in the brain. This opinion has been already sustained. 



" We are continuing our experiments, and shall, without doubt, be 

 able to arrive at a solution of this interesting problem." 



ON A HYiENA-DEN AT WOOKEY-HOLE, NEAR WELLS. 



BY W. BOYD, KSQ., B.A., F.G.S., 



BtTEDETT-COUTTS GEOLOGICAL SCHOLAR IN THE UNIVERSITT OF OXFORD. 



[The account of the contents of a cave near Wells, in Somerset- 

 shire, England, which we extract from the last number of the Quar- 

 terly Journal of the Geological Society, is not only interesting to the 

 geologist and palaeontologist, but from the discovery ^of human relics, 

 very highly so to the antiquarian and ethnologist. As all our readers 



Vol. VII . V 



