296 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Juue 1, 



found in any subsequent deposit. I agree with Mr. Prestwich*, 

 that Uttle more can be affirmed of them at present, than that they 

 were violent, transient, and suddenly arrested. To this I shall add 

 proofs, that the action was intermittent, and that while great swishes 

 of water came off the land, forming these angular deposits, river 

 action continued, causing them to alternate with more than one de- 

 posit of mammalian remains and river shells, in those deep beds of 

 brick-earth which occur near the outskirts of the ancient alluvium of 

 the Thames, at Erith, Ilford, &c. 



At page 295 is a synoptic table of the different deposits of the 

 pleistocene sera in Norfolk, the valley of the Thames, and on the 

 south-eastern coast, arranged chronologically according to these views. 

 Plate XIII. exhibits a diagram-section illustrating the amount of de- 

 nudation of the Erratic Tertiaries, the Eocene Tertiaries, the Chalk, 

 and the subjacent rocks of the area of the Weald, which I consider 

 to have taken place during the latter part of the period of pleistocene 

 submergence, and during the period of re-elevation, up to the sta- 

 tionary period which preceded the operations of the warp-drift. 



3. On the Geological and Glacial Ph^enomena of the Coasts 

 of Davis' Strait and Baffin's BAvf . By P. C. Sutherland, 

 M.D., Late Surgeon in the Arctic Expeditions. 



[Communicated by Prof. A. C. Ramsay, F.G.S.] 



From Cape Farewell to Cape Atholl. — The Danish settlers in 

 Greenland have pretty accurately laid down the geological character 

 of the eastern coast of Davis' Straits from Cape Farewell, about 

 lat. 60°, to Cape Shackleton, about lat. 74° J. Beyond this latitude 

 and down the west side of Davis' Straits, the coast is almost un- 

 known, from the difficulty experienced in approaching the land by 

 the Whaling and Discovery Ships, the only ships that ever attempt 

 to reach it. 



Commencing at Cape Farewell (Sketch No. 1), we find the cry- 

 stalline rocks § (granite, gneiss, &c.) forming a rugged and pinnacled 

 coast, intersected by fiords of great length, in which the tide is 



* Quart. Journ. Geol. Soc. vol. vii. p. 276. 



t The author has presented to the Society a series of original sketches (referred 

 to in the memoir) illustrative of the geological and glacial conditions of different 

 parts of the coasts described in the paper. These are accompanied also with a 

 chart on which the geological indications are laid down as carefully as the author's 

 observations, often necessarily made at some distance from the shore, permitted. 

 Other sketches of portions of the coasts of West Greenland, Cockburn Land, North 

 Devon, &c., are published in the author's Journal of Capt. Penny's Voyage, 1852. 

 Cape York and the eastern coast of Smith's Sound are illustrated by hthographs 

 in Capt. Inglefield's ' Summer Search for Sir J. Frankhn,' 1853. 



X See Rink's Geology of West Greenland, 1852, Trans. Roy. Soc. Denmark, 



§ Copper, tin, lead, and silver ores have been discovered in the vicinity of 

 Julianes-Haab, about a degree north-west of Cape Farewell ; and at Upernivik, 

 about lat. 71°, graphite of tolerable purity occurs in abundance. 



