162 KELIQUkE AQUITANIC2E. 



Hamilton), Prof. Rupert Jones, Capt. Galton, Mr. Lubbock, and Mr. Franks, 

 that I visited the localities at the end of March last, and was thus enabled more 

 fully to estimate the value of the facts detailed in the communications already 

 addressed by M. Lartet and Christy to the French Academy* and to the 'Revue 

 Arche'ologique 't- It is to these memoirs, and to information received from their 

 liberal authors, that I am indebted for many of the facts that I am about to 

 adduce. I am also indebted to Prof. Rupert Jones for the sketches which illus- 

 trate this paper. 



The principal spots where the investigations of Messrs. Lartet and Christy have 

 been carried on are situated within the valley of the V6zere, or in those of its 

 affluents in the Arrondissement of Sarlat, in the Department of the Dordogne. 

 [See the Map at page 126, in Part X.] 



The Valley of the Vezere : River and Cliffs. The river Vzere, which takes 

 its rise near Chavagne, in the Department of the Correze, enters Dordogne as a 

 considerable stream near Terrasson, and, after pursuing a tortuous course in a 

 south-westerly direction for about thirty miles as the crow flies, joins the river 

 Dordogne at Limeuil a few miles south of Le Bugue. In the neighbourhood of 

 Terrasson the V6zere passes over a small tract of Carboniferous beds, which are 

 regularly worked for coal; but by the time it reaches Condat, where first we 

 joined the river, its valley is excavated through rocks belonging to the Jurassic 

 series, which near Aubas, a few miles lower down, are exchanged for those of the 

 Cretaceous system. [See Geological Map and Section, supra, page 29.] It is 

 neither in my power, nor is it in the slightest degree necessary for my subject, to 

 enter into any stratigraphical details with regard to this succession of beds, which, 

 however, in general appearance, present a considerable contrast to their equivalents 

 in this country. I will only mention that the Cretaceous beds, from the Lower 

 Greensand upwards J, assume, in the Department of the Dordogne, the form of a 

 compact limestone, more or less arenaceous in its different subdivisions, which 

 also vary considerably in hardness. [See Geological Notes, by T. Rupert Jones, 

 at page 31 &c.] 



The valley of the Vezere seems to afford good evidence of its having been, 

 at all events as to that part of it more immediately visible from the river, 

 excavated by the action of the river itself, aided by the action of the frost and 



* Comptes Rendus, 29 Feb. 1864. t Rev. Arch. April 1864. 



t A notice of the Chalk formation of this Department, from the pen of M. Arnaud, will be found in the 

 ' Bull, de la Soc. Geol. de France,' 2nd ser. vol. xix. p. 465. 



