Intelligence and Miscellaneous Articles. 235 



which he has observed are in favour of the existence of an ice-sheet 

 travelling south in this district. 



Mr. Cumming's observations in the Isle of Man were considered to 

 confirm these views. He describes the general glaciation of the 

 island as being from the E.N.E. or Lake-country, and describes 

 many large blocks of granite which had been carried from their 

 parent rock up the high hill of South Barruh and down the other 

 side. This was referred by Mr. Cumming at the time to a great 

 "wave of translation ;" but the facts are quite easily explained by 

 an ice-sheet. ' Other observations of Mr. Cumming upon the drifts 

 of the Isle of Man were taken by the author as confirmatory of his 

 views. Mr. Morton's observations on the glaciation of the Mersey 

 basin were touched upon ; and it was suggested that the glaciation 

 of that district was produced by an ice-sheet, not coming from the 

 south-east, as Mr. Morton holds, but working to the south-east from 

 th e Lake-country, and across a part of what is now the Irish Sea. 



Professor Ramsay's observations on the glaciation of Anglesey being 

 to the S.S.~W. instead of from the Snowdon group, as might have been 

 expected, were considered by the author to be confirmatory of his 

 views of a great ice-sheet having filled what is now the Irish Sea, 

 and emptied itself by St. George's Channel on the one hand, and by 

 the Cheshire plain on the other, as well as by some of the passes in 

 the Pennine Chain. 



5. " On the Mammalia of the Drift of Paris and its Outskirts." 

 By Prof. Albert Gaudry, F.C.G.S. (In a letter to W. Boyd Dawkins, 

 Esq., M.A., E.E.S., P.G.S.) 



In this paper the author briefly indicated those mammals the 

 remains of which have been discovered in the Pleistocene or Qua- 

 ternary deposits of Paris and its vicinity. His list includes flint 

 implements as evidences of the existence of man, and bones of the 

 following species : — Canis lupus, Hyaena crocuta (speloea), Felis leo 

 (spelcea), Castor trogontherium and fiber, Elephas primigenius and 

 antiquus, Hippopotamus amphibius, Rhinoceros tichorhinus (a Rhi- 

 noceros of doubtful species), Sus scrofa, Equus asinus and caballus, 

 Bos primigenius, taurus?, and indicus 1 ? , Bison priscus and europosus, 

 and Cervus tarandus, Belgrandi, megaceros, canadensis ?, elaphus, 

 and a small species. 



XXIX. Intelligence and Miscellaneous Articles. 



ON THE ACTION OF A CONDUCTOR ARRANGED SYMMETRICALLY 

 ROUND AN ELECTROSCOPE. BY CH.-V. ZENGER. 



1 HAVE the honour to address to the Academy the result of some 

 ■*■ fresh experiments on the electric inertia of a conductor arranged 

 symmetrically round an electroscope. 



Ruhmkorff found that if static electricity exercises no action on 

 the electroscope disposed as I have indicated, it is not so with dy- 

 namic electricity or the electricity of induction. 



