Geological Society of London. 569 



of tlie period of submergence, during a later part of wliich the 

 Jurassic strata were deposited. 



Mr. Woodward, unwisely, we think, adopting the Greek name 

 Poikilitio for the older English New-Red, has, however, done what 

 is most important, and taken the Permian (or what remains of it 

 when the stained Carboniferous has been left out) into the Mesozoic 

 Group. It would have been well had he given a section of the 

 so-called Permian, resting as it does in many places in the North- 

 West of England unconformably on the denuded edges of the lowest 

 Carboniferous rocks. 



The judicious remarks at the commencement of the chapter on 

 the Cretaceous strata show that he has clearly appreciated the 

 difference between a great break, representing a long interval of 

 time, and a series of small interruptions in the local continuity 

 of conditions which do not give such obvious and well-marked 

 boundary-lines, and where we may wait for more detailed and 

 extended work. 



In the Tertiary rocks Mr. Woodward accepts the strong strati- 

 graphical evidence that the Hempstead beds are more closely con- 

 nected with the Eocene than with the Miocene. 



In the concluding chapters he has described other geological 

 phenomena depending upon denudation, metamorphism, etc., and 

 has added much useful information in an appendix. 



The small errors which have crept in, chiefly in the latter part of 

 the work, will probably be pointed out by friends, and corrected in 

 subsequent editions, which we anticipate will surely be called for, as 

 the work supplies a want felt both by teachers and students. 



It forms a useful handbook for those who are working at special 

 points, and they can increase its value by putting in for themselves 

 exact references to the many authors quoted throughout. To the 

 student we can confidently recommend the book for its clearness 

 and accuracy. T. MK. Hughes. 



Tkinity College, Cambridge. 



*** The illustrations, drawn by Mr. Edward Fielding for this work, are extremely 

 good. We give three, taken at random, which, as specimens of wood engraving, 

 deserve high commendation; others in the book are even superior in geological eifect. 



Geological Society of London. — November 8, 1876. — Prof. P. 

 Martin Duncan, M.B., F.R.S., President, in the Chair. 



A Portrait of the late G. Poulett Scrope, Esq., F.R.S., F.G.S., was 

 presented by Prof. J. W. Judd, F.G.S. 



The following communications were read : — 



1. "A short notice of a new exposure of Ehsetics near Notting- 

 ham, in a letter from E. Wilson, Esq., E.G.S., dated November 3rd, 

 1876," in which he said : — 



Since March, 1875, when I drew public attention to the occurrence 

 of EhEetics near Stanton, on the new Midland line from Nottingham 



