Proceedings of the Wernerian Society. 391 



bed of sea-shells, estimated 40 feet above the level of the Clyde, 

 which he .examined in the line of the Ardrossan Canal, a few 

 miles from Glasgow, of which memoir an abstract was published 

 in the 4th volume of the Society's Memoirs. He enumerated 

 the following shells: — 1. Turbo littoreus, 2. rudis, and 3. tere- 

 bra ; 4. Nucla minuta and 5. nuclea ; 6. Patella vulgaris and 

 7. pellucida; 8, Buccinum lapillus, and 9. undatum; 10. Mytilus 

 edulis; 11. Venus islandico, 12. striata, 13. literata ; '[^.Pec- 

 ten opercularis, the subrufus of Donovan ; 15. Balanus com- 

 munis; 16. Anomia ephippium ; 17. Tellina plana; 18. Nerita 

 littoralis, 19. glaucina ; 20. il/e/a truncata ; 21. Trochus cras- 

 sus; 22. Cardium echinatum. All these shells. Captain Laskey 

 remarked, still inhabit the Frith of Clyde and its shores, but 

 occur below Dunbarton, or where the water is constantly salt. 

 Captain Laskey also described to the Society a bed of dead sea 

 shells near to Dunbarton, and above the present level of the 

 Clyde, among which he particularised Venus sulcata, Pecten 

 islandica, and Ostrea islandica of Turton. Dr Fleming after- 

 wards read to the Society " A short account of a bed of fossil 

 shells found on the banks of the Forth to the west of Borrows- 

 tonness." This bed he described as entirely of sea-shells, mixed 

 with a small portion of sand. The comvion oyster is in great- 

 est abundance ; and along with that shell all those species which 

 are found in plenty on the shores of the Frith of Forth ; such as 

 Mytilus edulis, Venus rhomboidea, Mactra truncata, Buccinum 

 undatum, Turbo littoreus. Patella vulgaris. The bed is about 

 3 feet thick, and below it a bed of gravel resting upon the sand- 

 stone of the district : it extends in a straight line along the bank 

 of the Forth, in a direction from east to west, nearly three miles, 

 and is about thirty-three feet above the rise of ordinary spring, 

 tides. Mr Bald, in the Memoirs of the Society, mentions sea-shells 

 as occurring at Alloa, twenty feet above the present level of the 

 Frith of Forth ; also sea-shells several miles to the westward of 

 Stirling Castle, particularly valves of the oyster, of uncommon 

 size, although no recent specimens are now found so large, nor 

 any live oysters above Quccnsferry ; also a bed of sand and oys- 

 ters at the foot of Clackmannan hill. Mr Adamson, another 

 member f)f the Society, in a memoir published in vol. iv. of the 

 Society's Memoirs, describes a bed of sea-shells in the isle of 



