162 DB. Clarke's address. 



After dinner a long and interesting communication from Mr David 

 Milne was road concerning some lenticular shaped stones, which, were 

 found imbedded in soft and slaty shale on the high and precipitous 

 banks of the Tweed, near Norham, on the north side of the river. 

 These stones on being fractured presented also a lenticxdar arrange- 

 ment, and were found to consist partly of arenaceous, partly of argil- 

 laceous, matter. Mr Milne likewise mentioned the occurrence of 

 similarly shaped stones in a red sandstone quarry in the grounds of 

 Ladykirk House, about three-quarters of a mile above the spot where 

 the stones were situated in the shale. Mr Milne added some observa- 

 tions on the frequent occurrence and probable formation of these 

 stones ; the latter he attributed to a peculiar process of crystallization 

 excited among the particles of the stratum where they were imbedded ; 

 the predisposing cause he attributes to the presence of a quantity of 

 iron (which they all contain) impregnating the particles, andgivingthem 

 the tendency to arrange themselves in this particular form. This pro- 

 cess, he observes, must have taken place previous to the consolidation 

 of the strata in which they were imbedded. Mr Milne further observed, 

 that he had proceeded to the bank below Norham Castle, where an old 

 quarry was situated, in search of certain pyriform stones. Owing, 

 however, to the quarry being filled up with rubbish, he was unable to 

 procure any, but he shewed several which had been obtained several 

 years ago by Sir David Milne when the quarry was worked. They 

 vary in size from two inches to two feet in diameter. Mr Milne con- 

 cluded his paper by proving from the different strata of sand and gravel 

 at and near the village of Norham, that the Eiver Tweed had at some 

 former period flowed in a channel about twenty-five feet higher than 

 that which it now occupies. 



The Club met for the first time this year at Eyemouth. " After 

 breakfasting with the Eev. Mr Turnbull, the members took their walk, 

 which lay along the sinuous rocky coast between Eyemouth and Col- 

 dingham. The day was favourable, and as the locality is a fijie one, 

 the Club had often occasion to halt that they might leisurely examine 

 and admire many little creeks, basins, and promontories, rendered 

 interesting by their geological structure, or their rugged picturesque- 

 ness. One place exhibited a very plain overlying of the sandstone above 

 the trap, and gave rise to much speculative conversation, which was 

 interrupted and deleted by the unexpected appearance of a fine 

 Q-rampus, sporting in the sea below. He moved, at measured pace, 

 along the coast northwards, and was so near as to afford a full view of 

 him, that no doubt was left of his character and designation. The 

 zoologists saw little else worthy of notice. A Wheat-ear, which Mr 

 Selby remarked was the second only he had seen this season, — a Solan 

 Groose, — a green Cormorant in his spring plumage, — and an Eider Duck, 

 were, amongst others, of common occurrence. Mr Selby captured a 

 few insects, whose names he will communicate at another meeting. On 



