Reports and Proceedings — Geological Society of London. 573 



quarries, hill-sides, and other places where sections of various roclc- 

 masses are, by the well-educated teacher, made to indicate the how 

 and the why of their origin, changes, and present condition. Lesson 

 VII supplies a good example of the line of thoughtful inquiry into 

 the succession of events which go to make up the long geological 

 history of the changes which have taken place during the building-up 

 of the Earth's surface. We are reminded here and there that for 

 some of the great problems in the Earth's history explanations 

 cannot be given in the first lessons in geology, but they must be 

 reserved by the student till a later stage in his progress. 



That these are lessons in modern geology Professor Green's 

 teaching gives full evidence throughout," especially on the subject 

 of thrust-faults, schistose rocks due to crush, transverse valleys, 

 origin of flints in chalk, cautious reference to the origin of Boulder- 

 clay, etc. 



The printer's type in this book is good and clean. Of the 

 forty-two illustrations nineteen are new, very useful, and well 

 printed ; of the others several are from Professor Green's larger 

 work. We heartily recommend this excellent and well-written 

 primer or handbook of "First Lessons " for home use in intelligent 

 families, and to educational establishments as a trustworthy early 

 guide in the study of geology. 



III. — Supplement to the Geology of the Netghbourhoods of 

 Flint, Mold, and Euthin. By A. Strahan. Memoirs of the 

 Geological Survey. 8vo ; pp. vii. (London, 1898. Price 2d.) 



n|"^HE object of this Supplement is to record a series of borings 

 JL which have been put down in the reclaimed portion of the 

 estuary of the Dee. They prove the existence of Upper Coal- 

 measures, which nowhere appear at the surface, and which were 

 not previously known to be present in Flintshire or West Cheshire, 

 The discovery of these strata is of importance, as they may underlie 

 much or all of the Cheshire Trias; they are not productive, and 

 consequently they would have to be penetrated before the productive 

 Middle Coal-measures could be reached. 



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Geological Sogiett of London. 



L_November 9, 1898. — W. Whitaker, B.A., F.R.S., President, 



in the Chair. 



The President drew the attention of the Fellows to the new 

 Geological Survey Index Map of England and Wales, which had 

 been hung upon the walls of the meeting-room during the recess. 



Mr. Bauerman, in exhibiting a map of the Gellivara iron-ore 

 deposits, pointed out that these constitute a chain some five miles 



