Reviews — Geological Survey Memoirs. 39 
ft. in. 
Boulder-clay with intercalated stratified sand and gravel, 
not less than ... 786 ee ees Sue a L200 
Fine chalky gravel SAA ves 4 ae 500 2 0 
Silt with shells... Sa: 5S Sie 5p oh 3 (0 
Kimeridge Clay... Es 4 0 
The thanks of the Committee are due to the Right Hon. the Earl of 
Londesborough for permission to investigate the shell-bed at Speeton, 
and to Mr. C. G. Danford, of Reighton, for help in many ways. 
Ie VE EEO SS = 
I.—Memorrs oF THE GeoLocicaL Survey, Enetanp and WALES. 
Exrtanation oF SHeer 110: THe Gekonogy or THE CountRY 
AROUND MaccLEsFIELD, ConGLEToN, Crewe, AND .MippLEwIcH. 
By T. I. Pocock, M.A. With Contributions by G. Barrow, 
HeGes.5. Wis. GUBSON, 73.9c...,B.G.8., CL Bb. Wenpp, B.A.) F.G:S.. 
and J. A. Hows, B.Sc., F.G.S.; and Notes on Fossils by 
E. T. Newton, F.R.S.1. pp. 188. 1906. Price 2s. 6d. 
Mar. Saeer 110. 1inch tothe mile. An edition showing drift and 
solid. Printed in colours. Price ls. 6d. 
N this new issue of Sheet 110 we have an excellent map at a low 
cost. ‘lhe new method, adopted in the map of Stoke-on-Trent, 
immediately contiguous, supersedes the old hand-coloured maps, 
with their inaccuracies due to the personal vagaries of the colourist, 
the difficulty of getting the same tint of colour on different copies, and 
the want of permanence in the colour, due to fading, and to the fact 
that the colours run, if the map gets damp. ‘The production of the 
map is one for hearty congratulations to all concerned, but we would 
fain have seen two editions, a drift and a solid. 
The present edition attempts to show both, consequently the solid 
geology of the area is not as distinct as it might be. The sheet 
introduces more country to the west and less of the east than in the 
old edition, and on the whole takes in a much larger area. We are 
glad to see the term Pendleside Series adopted for the beds between 
the Carboniferous Limestone and the Millstone Grits, and a distinctive 
colour adopted for them. We hope that the Survey will continue the 
use of the term for similar beds on the eastern side of the Pennine 
uplift and thus avoid further ambiguity. 
The map, we understand, is printed and coloured at the Ordnance 
Office, published by the Board of Agriculture, and distributed, as 
agent apparently, by Fisher Unwin. 
The Memoir contains detailed descriptions of the various divisions of 
sedimentary rocks which occupy the area of the map. They include 
1 A brief note of this Memoir appeared under ‘‘ Notices of Memoirs’’ in the 
December Number of the Gzotocicat Macazing, 1906, p. 558, 
