EXCHANGE. 



157 



Geological discoveries at the Hoyle's Mouth 

 Cavern. — We have been informed that two 

 gentlemen visiting Tenby have recently 

 found in the *' Oyle" or " Hoyle" cavern 

 some interesting remains of extinct and 

 other animals. 



In the chamber which is at present the 

 furthest accessible part of the cavern, they 

 found in a mass of breccia a large part of 

 the bones of the hind quarters of the Great 

 Cave Bear, which they extracted in a very 

 perfect state ; near these were some remains 

 of Hycena Speloea and several loose bones 

 and teeth of Fox, Deer and Ox. In the 

 passage, about forty feet from these, were 

 found the bones and teeth of Hysena, Fox, 

 Deer, and Goat, also the bones of a large 

 bird, and what is especially interesting — a 

 worked flint. All these were below the 

 level of the old hard stalagmitic floor, and 

 therefore contemporary with the epoch 

 called Pleistocene — ^in fact, of the period of 

 the Mammoth. It is remarkable that in 

 this cave there is evidence, that during a 

 portion of this period, the sea had access to 

 the interior, as the bones were accompanied 

 both below and above them, by pebbles of 

 various rocks, exactly resembling those on 

 the sea shore, and on parts of the sides are 

 to be found deposits of sea shells, covered 

 with a thin coat of stalagmite, exactly in 

 the positions such animals would have 

 lived in. 



At the entrance excavations were made 

 by these gentlemen, in consort with our 

 respected neighbour, the Eev. G. N. Smith, 

 of Gumfreston. 



A large number of worked flints were 

 discovered, and in a layer that there is 

 every reason to believe was perfectly free 

 from previous disturbance, among them 

 was found the upper molar of the Megaceros 

 or Great Irish Elk — an animal strictly the 

 contemporary of the Great Cave Bear, 

 the canine tooth of which had some time 



since been discovered in the same place, 

 similarly associated, by Mr. Smith. 



Some of these worked stones were not 

 exactly flint, but of a stone not at present 

 known to our informants. It is a semi- 

 vitrified trap, or semi- obsidian, of a dull 

 green colour, with whitish specks, and 

 translucent at the edges, having precisely 

 the same fracture as flint. 



There were also discovered, at a level 

 below that of the old stalagmitic floor, and 

 directly under a shelf of it, about thirty- 

 five feet from the entrance of the cave, a 

 part of the lower jaw and the heel bone of 

 a man. These remains may be of the date 

 of the worked flints ; but they were so 

 placed that they may have been of any 

 date greater than a few hundred years 

 since. — Tenby Observer. 



Lepidoptera. — I have duplicates of these 

 insects for exchange in good condition. G. 

 rhamni, 0. Edusa, A. Paphia, A. Adippe, 

 A. Euphrosyne, V. Cardui, A. Galathea, S. 

 Semele,L. quercus,L. agestis, L. Corydon.,L. 

 Alsus, L. Argiolus, S. alveolus, H. Actceon, 

 (taken atLulworth Cove in J\\lj,)3f. stellata- 

 rum, Z. filipenduloe^ G. miniata, L. dispar, 

 (bred)^. lanestris,{hT&dL),B. quercus,0.. sam- 

 bucata^P. cytisaria,II.thymiaria, C.pusaria, 

 L. adustata, C. prunata, E. bipuntaria, L. 

 impura, L.pallens, X. polyodon, H.popularis, 

 T. gothica, and pupee of P. Bucephala, I shall 

 be glad to receive a list of duplicates from 

 any one who wishes to exchange. I require 

 besides many others. G. Hyale, A. iris, 

 V. Antiopa, G. G -album, A. Aglaja, T. 

 betulce, L. Arion, L. paniscus, any of the 

 Hawk moths, except ligustris and stella- 

 tarum, L. monacha, A. vellica, L. trifolii, 

 E. versicolora, G. Haworthii. — Miss Ellen 

 DiBBEN, Critchillj Wimborne, Dorset, 

 September 1st. 



