4,. Notes and Copivients.. ,. 



holocrystalline and hypabyssal equivalents of the Borrowdale 

 Lavas, and the author is of opinion that they also are of 

 Ordovician age. . . ,. 



ESKDALE AND WASp^Lp GRANITE. ; - 



■ The Eskdale and Wasdale Granites (^) are much more acidi,-' 

 and show little sign of alteration, except that .due to weathering . 

 and ■dislocation. They are undoubtedly - intrusive into the: 

 Borrowdale Series, but seems to be pre-Tniassic. Thus th^ . 

 intrusion is probably Devonian, like the neighbouring granite 

 of Shap, which, with the exception of its 'large phenocrysts 

 of orthoclase, is not dissimilar to some of the varieties of the 

 Eskdale Granite. The basic intrusions (e),. have, been examined' 

 only where they come into proximity to the granite. They, 

 may well be connected with the great Tertiary basic flows of ; 

 Antrim, as has been suggested by Mr. Harker. The granite 

 becomes progressively more, and more acid as its margin is ■ 

 approached, until, in some places, the percentage of silica 

 amounts to g6.i6. This is explained by the assumption that 

 the magma, as a whole, was more acid than the eutectic mixture 

 of quartz and orthoclase, and that consequently the excess of 

 silica separated in the marginal portions, which were the first 

 to solidify. ' 



GEOLOGY OF HARROGATE. 



A second edition of the " Geology of the Country north 

 and east of Harrogate,' prepared by Mr. C. Fox-Strangways, 

 has just been published by the Survey, and we should like to' 

 corigratulate both the Survey and Mr. Fox-Strangways upon 

 thfe general excellence of the work. It is also illustrated in a" 

 way which is quite refreshing for a government publication^' 

 the reproductions of photographs by Mr. Godfrey Bingley ' 

 being Very fine indeed. There is also a coloured geological 

 map of the district. 



After dealing in detail with the various' beds in the area, 

 there are chapters on the physical structure, economic geology, ■ 

 the Harrogate springs, etc., the last being of particular value. 

 There are appendices devoted to well-sections and bibliography, 

 both of which are carefully compiled, and unusually complete. ' 



YORKSHIRE ZOOLOGISTS. 



The Vertebrate Section of the Yorkshire NaturaHsts' Union^ 

 recently held a most successful meeting- at Leeds, which extended.. 

 Irom early in the afternoon until late in the evening. Mr. Rileyv 



Naturalist, 



