4 Eminent Li'ciug Geologida — 



rocks of the Exeter district, on a Mangauese deposit at Hockwortliy 

 (1899), and on the Marbles of Assyut (1900). 



On March 1, 1901, Mr. Teall was appointed Director of the 

 Geological Survey of Great Britain and Ireland in the room of 

 Sir A. Geikie, Director General, who retired on February 28. The 

 change in title was probably due to the fact that the severance of 

 tlie Geological Survey of Ireland was then contemplated, and it took 

 place on April 1, 1905. Prior to this application of Home Eule to 

 the sister countiy the Geological Survey underwent a thorough re- 

 organization, under the administration of Mr. Teall. The field-work 

 was carried on in a more systematic way in defined areas under 

 district geologists, and it was arranged that the one-inch maps and 

 accompanying memoirs should be published simultaneously. 



The colour-printing of maps, which had been initiated in England 

 and Wales under the direction of Sir A. Geikie, was now extended 

 to the new Drift maps in Ireland and to the Index Map in Scotland. 

 A very useful geological map of the British Islands on the scale 

 of 25 miles to an inch was issued in 1906. A new series of the Index 

 or General Map of England and Wales on the scale of an inch to 

 4 miles has been nearly completed, and a similar map for Scotland 

 has been commenced. The publication of the six-inch maps of the 

 Coalfields, long abandoned, has again been undertaken, and these maps, 

 so important for economic purposes, are now issued both coloured 

 and uncoloured. 



The Summary of Progress has been somewhat modified so as 

 to include a number of original articles and reports by various 

 members of the Staff ; and among numerous other publications it may 

 be mentioned that the great memoir on the Geological Structure of 

 the north-west Highlands of Scotland, promised in 1888, has at 

 length been issued to the j)ublic, under the editorship of Sir A. Geikie. 

 In this volume are incorporated some of the more important petrological 

 researches carried on by Mr. Teall during the first seven years of his 

 official service. 



At the time of the reorganization new survey offices were con- 

 structed for the field-staff, with excellent rooms for the Petrographical 

 and Chemical Departments, the former under the charge of Dr. J. S. 

 Elett. The Museum itself was considerably modified ; many manu- 

 factured articles were taken away, notably the fine collection of 

 British pottery and porcelain, to make room for the further display 

 of purely geological objects. In place of the Metallurgical specimens 

 (removed to South Kensington) a fine collection of British Minerals 

 has been arranged topographically and accompanied by a most excellent 

 handbook prepared by Mr. Rudler. The economic applications of 

 geology, the most important part of the official work, have been dealt 

 with much more effectively both by the Survey and Museum. The 

 collections of clays and building-stones have been considerably 

 extended. The series of county memoirs on Water Supply, of which 

 one had previously been published, has been continued, and memoirs 

 have been issued on the Coals of South Wales and on the Oil Shales 

 of the Lothians. Structural improvements have been made in the 

 Museum, including the conversion of the old lecture theatre in part 



