432 Correspondence — H. B. Muff — Messrs. Sykes 8f Sherhorn. 



PEE-GLACIAL BEACHES OF BRIDLINGTON AND S. OF IRELAND. 



Sir, — In the July number of the Geological Magazine, Mr, A. "R. 

 Hunt, in a paper on " The Geological Physics of the Shallow Seas," 

 contrasts the pre-Glacial beaches of Bridlington and of the South of 

 Ireland, and says, " But in the Irish beaches .... we have, 

 much further south, the rock-platform itself ice-scored, affording no 

 accommodation for hippopotami." These ice-scorings, however, occur 

 only where a deposit of boulder-clay lies immediately on the plat- 

 form, and, whatever may be the direction of the coast, the direction 

 of the striae on the platform remains parallel to those occurring 

 under boulder-clay on higher ground inland. Nothing was seen 

 to suggest that striae occurred between the beach-platform and 

 the beach-gravel, or that the beach-gravel had ever been distui'bed 

 by ice before the accumulation of the lower ' head.' The strise, 

 therefore, are not of the same age as the beach, and do not indicate 

 the prevalence of glacial conditions during the formation of the 

 beach. As at Bridlington, the beach "need not represent so cold 

 a climate as that which followed." In this point, as in so many 

 others, the South of Ireland pre-Glacial beach agrees with that of 

 Bridlington. Consequently there is no reason from considerations 

 of climate why the Irish cave fauna should not be found in the Irish 

 coast-sections in a position similar to that of the mammalian remains 

 in the Bridlington section. Nor do the '• shells with a southei'n 

 range on Devonshire beaches of the same levels " afford an obstacle 

 to the correlation of these with the Irish beaches. The erratic 

 pebbles found in the Irish beaches are not against this correlation, 

 since erratics are also found in the Devonshire beaches. 



Glencoe. H. Brantwood Muff. 



July -llnd, 1905. 



MUSEUM BOLTENIANUM, PART 2, 1798. 



Sir, — The rarity of part 2 of this work, which relates to Mollusca, 

 is well-known to students. In response to a number of enquiries it 

 is proposed to reproduce a few copies, by photographic facsimile, 

 from the Crosse copy now in the British Museum (Natural History). 



The large number of pages (204) must render this a somewhat 

 costly task, and we should be glad to know if any of your readers 

 would care for a copy to be reserved for them at the price of £2 

 per copy. 



The work would be done, under our supervision, by Mr. F. W. 

 Keader. 



The issue will be limited, numbered, and signed, and could be 

 prepared for distribution during the Autumn. 



It must be clearly understood that unless sufficient subscribers are 

 forthcoming, no issue can be made. 



Any intending subscriber should address Mr. E. R. Sykes, 3, 

 Grays Inn Place, Grays Inn, London. 



E. E. Sykes. 



June, 1905. C. Davies Sherborn. 



