NOT IiS AND QUERIES. 



113 



It seems desirable to place on record the discovery of specimens like the 

 above, even though they maV add nothing to the evidence on the question 

 of human antiquity. — 1 am, yours, etc., War. Pjsngelly. 



Lamorna, Torquay. 



[The implement which I have drawn above, from the specimen kind!) forwarded to 

 ine by Mr. Pengelly, appears to me to present the singular appearance of having been 

 manufactured ou1 ofoneof the largo pointed implements of the Drift oft lie Amiens and 

 Hoxne pattern. All the portion from a, d, b, e, a, is smoothed by wear or friction, 

 while the lines of fracture in the remaining portion, d, b, e, c, d, are sharp and fresh, of 

 subsequent workmanship, but not of recent fabrication. — Ed. Geol.] 



. Mammalian Remains at Dulwicii. — In the 5th volume of the 'Geo- 

 logist,' page 302, Mr. A. Bott announced the discovery of the tooth of a 

 mammalian animal from the Woolwich beds near Dulwich. 



Since the publication of that notice, Mr. Bott has kindly placed at my 

 disposal a most accurate and beautiful photograph of the tooth in question. 

 1 regret very much that a careful examination of it does not permit me to 

 decide with any certainty on the generic position of the animal to which it 

 belonged. I consider the tooth in question to be a canine ; and after a 

 comparison between it and the CorypKodon of the Lower Eocene of Eng- 

 land and France, think it highly probable that it may have belonged to 

 that genus. The identification, however, of any species of herbivorous 

 mammal by means of one solitary canine tooth is exceedingly to be de- 

 precated. — C. Cakter Blake. 



Kxtknt of th e 1 ) it i ft. — The low countiy in the east of England, north 

 of the Thames, and all Wales, is more or less covered with drift; but the 

 south of England, the Wealden area especially, and the country south of 

 the Bristol Channel, is in general destitute of it, except at very low 

 levels on and near the shore at Brighton, Selsey Bill, etc. On both sides 

 of (he \ralley of the Firth, and inland over the whole of Scotland, there are 

 numerous indications of glacial action, both in the older boulder-clay, 

 gravel, and later boulder-clay and gravels that more or less cover the 

 country, and in the frequent striation of the rocks visible where the drift 

 has been freshly cleared. By the Firth Professor Uamsay has observed 

 these striations to run roughly from cast to west in the main line of the 

 valley; and north of the Grampian mountains, Professor Jam ieson states 

 that they generally follow the great slopes of the country on the east and 

 west sides of the chief watershed. These striations, Professor Ramsay 

 thinks, were probably formed at a time when the whole country was cased 

 in ice, like the north of Greenland at the present day, and during the period 

 in which the older boulder-clay was formed. This was afterwards sub- 

 merged, and the younger drift deposited; and on the re-emergence of the 

 land, a second set of glaciers, of smaller size, filled many of the valleys. 



From the great Laurent ian chain to the banks of the Ohio, the central 

 plains of North America are more or less covered with boulder-clay and 

 drift, often several hundreds of feet in thickness. When removed, the rocks 

 on which those deposits rest are found to be very generally grooved and 

 striated; the striations running more or less from north to south. K\- 

 amples are everywhere to be met with in that region; but these occur- 

 rences have been more especially described near the Falls of Niagara, on 

 the shores of the Hudson, the eastern Hanks of the Catskill .Mountains, 

 and along the side of the escarpment from north to south up to the high 

 minor gorge that traverses the range from east to west ; and by Mountain 

 House, nearly 3000 feet above the sea, the striations bend round and cross 

 the watershed, as if, according to Professor Kamsay, when the land was 

 submerged to a certain level, the ice. previously grating along the side of 



VOL. VI. i«> 



