532 Reviews — Progress of the Oeological Survey. 



the announcement that a considerable tract around London, including 

 the gravel, brick-earth, alluvium, and drift, is in course of being 

 surveyed. 



In Scotland, Mr. A. Geikie, the Director, reports that a con- 

 siderable advance has taken place in the amount of ground surveyed, 

 in comparison with the return of the previous year, the additional 

 area amounting to 111 square miles. 



The general survey is proceeding from the high grounds of Dum- 

 fries and Kirkcudbright, already examined, to the lower country 

 southwards towards the Solway Firth, and in an easterly direction, 

 passing over Nithsdale and Annandale. This work will unite the 

 existing labours with those of former years in Peebleshire and 

 Selkirkshire. The surveys of the coal-fields of Douglas and San- 

 quhar, and of the mineral district of the Lead Hills, have been 

 completed. 



Sir Eoderick reports that short Memoirs, explanatory of the sheets 

 on the one-inch scale, are now issued regularly with every new map 

 of the Scottish Survey, at the small cost of threepence each, and that 

 similar descriptions are preparing of the previously issued maps 

 which were published without such information. 



In Ireland, Prof. Edward Hull, Director, reports very satisfactory 

 progress. 797 square miles were surveyed, and 1,742 boundaries 

 traced during the year. The work is now being carried on in 

 Galway, Mayo, Eoscommon, Longford, and Down. 



Several Index-maps accompany this report to show the state and 

 progress of the Survey. 



England is divided into 110 sheets on the one-inch scale. Of 

 these, sixty-nine whole sheets and eleven quarter-sheets have been 

 published ; of the remainder, fourteen quarter-sheets and one whole 

 sheet have been surveyed, and some of them are being engraved, 

 while seventeen quarter- sheets and one whole sheet are in progress of 

 being surveyed. There remain but twenty-four whole sheets and 

 eighteen quarter-sheets at present untouched. 



In the six northern counties of England, and also in Scotland, 

 many maps of the coal-fields have been published on the scale of 

 six inches to one mile. 



Scotland is divided into 120 sheets on the one-inch scale. Of 

 these, seven whole sheets have been published, two others, already 

 surveyed, are being engraved, while portions of fifteen more have 

 been surveyed or are in progress. 



Ireland contains 205 sheets. 122 of these have been published, 

 seven are prepared and engraving, and thirteen are in progress. 

 There remain but sixty-three untouched. 



In regard to the Museum, the Naturalist, Professor Huxley, 

 reports that during the year 1,771 specimens were added to the 

 collection of fossils. Among the purchases, he particularly mentions 

 the sponges from the Upper Chalk, which were described and 

 figured by the late Mr. Toulmin Smith, and the large collection of 

 fossils, illustrating the palaeontology of Northamptonshire and Eut- 

 landshire, from the collection of the late Dr. Porter. 



