526 Revieivs — Memoirs of Geological Survey. 



The Summary contains a rather full account of the field-work of 

 the Geological Survey in England and Wales, Scotland and Ireland, 

 and of the chemical, petrological, and palseontological work in 

 connection therewith, also the work of the Museums in London 

 and Edinburgh. 



Progress has been made in Cornwall and Devon in subdividing 

 the great Killas formation, and even the Grranite of the Land's End 

 area has proved susceptible of critical subdivision. In the South 

 Wales area the detailed examination of the Coalfield has proceeded 

 as far west as Swansea, and some new inliers of Silurian rocks have 

 been detected in Gower. The resurvey of the Midland Coalfields 

 has been continued. 



In Scotland further particulars have been obtained with regard to 

 the Highland Schists and the various Granite masses. Cretaceous 

 rocks have for the first time been noticed in Soay Sound and 

 Scalpay. 



In Ireland the Drifts have been surveyed in the Dublin area. 



Analyses of South Wales Coals have been commenced, and some 

 notes on weathering of Magnesian Limestone are published. 



A list is given on pp. 94, 95 of various maps, sections, and 

 memoirs issued during 1901 for England and Wales, e.g., Sheets 

 261 and 262 (Bridgend), in one map. Index Map, Sheets 8 and 11 

 have been revised, and Sheet 12 reprinted. Forty-nine manuscript 

 coloured copies of 6 inch sheets and quarter - sheets have been 

 deposited in the Office at Jermyn Street for public reference. 

 Three sheets of vertical sections have been published. A list of 

 memoirs and extra-official publications is added. 



Details of the palseontological work performed in the Museum 

 and Survey Ofiice for Scotland in Edinburgh are given on 

 pp. 177 to 182. Two sheets of the 1 inch map have been published — 

 one of Arran, part of Bute, aud the Cumbraes, the other of Loch 

 Lomond, Loch Katrine, and Callander. A list is also given of extra- 

 official publications for the year. 



For Ireland thirteen 1 inch maps have been revised and issued 

 at the Dublin Office. These maps relate almost entirely to the 

 Ordovician and Silurian rocks of Ireland, and shoulr! prove of much 

 interest to geologists. In Appendices A and B Mr. H. A. Allen 

 furnishes lists of figured and type specimens of British fossil 

 Phyllocarida and British Palgeozoic Echinoderraata preserved in the 

 Museum of Practical Geology, London. We hope soon to see the 

 whole of the types and figured specimens belonging to the Survey 

 published separately ; they will be of the greatest value to workers 

 in palaeontology. 



We congratulate Mr. J. J. H. Teall, the Director of the Geological 

 Survey, on the excellent work of 1901, and look forward to even 

 greater results in 1902. 



The Board of Agriculture desire to give notice that copies of all 

 the Memoirs and Maps of the Geological Survey may be obtained 

 from any agent for the sale of the Ordnance Survey maps, or through 

 any bookseller from the Ordnance Survey Ofiice, Southampton. 



