532 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 24, 



of the drift, I do not now enter, merely remarking that blocks from 

 a distance and striated fragments are found at elevations far above 

 what I have mentioned regarding the stratified deposits and water- 

 worn gravels. 



In this paper I have chiefly sought to point out two distinct 

 periods, or resting-points, in the Pleistocene history of this part of 

 Scotland : — one when, under a climate much colder than what we 

 now enjoy, the land sat some 450 feet lower than at present ; and a 

 subsequent period when it stood higher than it does now, and when 

 deer and great wild oxen roamed amongst its woods. 



Note. — Mr. S. P. Woodward, F.G.S., author of the well-known 

 'Manual of the Mollusca,' has favoured me with his opinion on some 

 of the shells from the Pleistocene beds described in the foregoing 

 paper, and remarks as follows : — 



" Most of the shells from the Annochie clay at St. Fergus are 

 examples of Nucula tenuis and Leda pygmcea. All the largest 

 shells from the same spot are Saxicava arctica. The Lucina ferru- 

 ginosa appears to be rightly named. One shell is a Cryptodon, 

 apparently, but quite new to us. The Cylichna is like C. obtusa. 



" Of the broken shells from the Kippet Hills, beside the Loch of 

 Slains, are — 



" Cyprina Islandica, Astarte borealis, Fusus carinatus, Tellina 

 solidula, and Cardium Norvegicum. 



" There are two specimens of the Tellina of unusual thickness ; 

 but they are like no other species. 



" Those from Cruden include — 



" Pecten opercularis, Cardium Norvegicum, and Trichotropis bo- 

 realis." — October, 1858. 



3. Mr. Kennedy Macnab, of Inverness, communicated, in a 

 letter to the Secretaries, the fact of flint arrow-heads and whelk-shells 

 having been found at the depth of about 3 ft. 6 in. beneath the sur- 

 face of a moss, covered with wood, in the parish of Abernethy 

 (Inverness and Elgin). 



4. Mr. Richard Mason, of Tenby, in a communication to 

 the Secretaries, offered a resume of the evidences, traditionary, 

 historical, and physical, of — 1st, the probable depression at some 

 pre-historic period of an extensive tract of country, covering the site 

 of the Bristol Channel and Cardigan Bay ; and 2ndly, of the more 

 recent elevation of the land in the neighbourhood of Tenby, South 

 Wales ; the elevated district being apparently confined to that lying 

 on the Carboniferous Limestone. Evidences of a comparatively recent 

 depression of the Cardiff area were also alluded to. 



