538 Geological Society. 



reversed order of succession ])revails south of the valley ; but as the 

 strata dip southward 80°, they apparently overlie the limestone, 

 the deceptive character being due to the contortions of the form- 

 ations. 



It is not possible to follow the author throughout his details, but 

 he shows, as before stated, that there is a regular sequence of form- 

 ation tliroughout the country to Cork Harbour, the only variations 

 being in the direction and amount of the dips due to undulations in 

 the formations, and in the strata themselves. The localities de- 

 scribed in greatest detail are the valleys of the Bride and the vicinity 

 of Cork. 



Mr. Griffith is of opinion, that the bands of carboniferous lime- 

 stone in the valleys of the south of Ireland are only patches of a 

 vast deposit which once covered the old red sandstone and transition 

 districts. 



The memoir was accompanied by an extensive collection of fossils 

 illustrative of the different formations of the country, but more 

 particularly of the Cork limestone. This collection was presented 

 by Mr. Griffith to the Society. 



June 5, — A paper was read, " On bones of Mammoths found in 

 the deep sea of the English Channel and German Ocean," by Capt. 

 J. B. Martin, Harbour-Master, Ramsgate, and communicated by Sir 

 John Rennie, F.G.S. 



The Ramsgate fishermen employed in trawling in the North Sea 

 and English Channel, frequently bring up in their gear, fragments 

 of fossil bones. These remains being generally charged with 

 worms, and covered with fetid marine substances, are seldom ca- 

 pable of being preserved ; but specimens in a good condition are 

 sometimes procured, and of the greater part of these, Capt. Martin 

 has been the fortunate purchaser. The following is a list of the 

 principal specimens : — 



1. A tusk, 9 feet long, and 8 inches in diameter at the lower 

 end ; but the part containing the alveolar cavity is wanting, and 

 therefore its length or greatest diameter, when perfect, cannot 

 be ascertained. The outside consists of very thin laminae, and 

 the interior of a soft substance resembling putty. The specimen 

 was found in 1827, and is in the possession of Mr. Forster of 

 Ramsgate. 



2. In 1835, a very large decayed bone, and a tusk 11 feet long, 

 but so soft as to be cut through with a knife, the centre being of 

 the consistence of pipe-clay, were dredged up between Boulogne 

 and Dungeness. The bottom of the channel, at that point, con- 

 sists of blue clay charged with rounded pebbles. 



3. In 1837, a fishat-man, trawling between the two shoals called 

 Varn and Ridge, and in 21 -fathom water, enclosed in his net a 

 vast mass of bones, but of which only a humerus was preserved. 

 The upper articulation is wanting, but the length of the portion 

 obtained is 38 inches ; the circumference of the upper part of 

 the shaft, 31 inches; of the centre, 20 inches; of the part just 

 above the condyle, 31 inches: and the width of the condyle is 



