274 Reviews—The Geological Survey of England and Wales, 
considerable portions of the Midland Counties, not to mention other 
areas, have not at present been mapped. 
Our present object, however, is to notice the recent Memoirs, and 
these will be taken as far as possible in the order of publication. 
1. “The Geology of the Country between and south of Bury St. 
Edmunds and Newmarket.” By F. J. Bennett and J. H. Blake; 
edited with additions by W. Whitaker, F.R.S. 8vo. pp. 27. (London, 
1886.) Price 1s. 
This Memoir contains notices of the Chalk, Glacial Drift, River 
Gravels, etc. Interesting sections are given, showing the structure 
of the Glacial deposits and their relation to overlying ‘“ Post- 
Glacial” loam, which has yielded Paleolithic Implements. Numer- 
ous well-sections form an Appendix to the work. 
2. “The Geology of the Country around Aldborough, Framling- 
ham, Orford, and Woodbridge.” By W. H. Dalton, edited (with 
some additions) by W. Whitaker, F.R.S. 8vo. pp. 59. (London, 
1886.) Price 1s. 
The district described in this Memoir is one of great interest to 
students of Pliocene geology, including as it does some of the 
famous Crag-sections near Orford and Aldborough. Mr. Whitaker 
contributes notes on the fossils and on the literature of the Coralline 
Crag, but the details given on this formation are confined to two 
pages, and there is no list of fossils. The accounts of the Red Crag 
and of the Chillesford Clay are fuller so far as stratigraphical details 
are concerned, but we miss an account of the fossils. The Palaon- 
tology will doubtless be treated in a general Monograph of the 
Pliocene formation, which we are informed is in preparation. 
Short notices of the Chalk, Reading Beds and London Clay, and 
a more lengthy account of the Glacial Drift, are given, together 
with notes on the River Gravels, Alluvium, Shingle, and Blown 
Sand. The well-sections in the area are duly recorded. 
3. “The Geology of the Country around Northallerton and 
Thirsk.” By C. Fox Strangways, A. G. Cameron, and G. Barrow. 
8vo. pp. 75. (London, 1886.) Price 1s. 6d. 
The rocks described in this area include Millstone Grit, Magnesian 
Limestone (Permian), Keuper Sandstone and Marl, Rheetic Beds, 
Lias, Oolites (up to the Kimeridge Clay), Glacial and Recent deposits. 
The country embraces portions of the Cleveland, Hambleton, and 
Howardian Hills. The Memoir will be of particular interest to 
students of Jurassic Geology. Among the strata, the Ironstone 
series of the Middle Lias is of special economic importance, and 
detailed sections are inserted to show its mode of occurrence. Lists 
of fossils are given from the different formations. There is also an 
Appendix of well-sections, and a list of the more important works 
referring to the district. 
4, “The Geology of the Country around Otterburn and Elsdon.” 
By Hugh Miller. With Notes by C. T. Clough. 8vo. pp. 147. 
(London, 1887.) Price 2s. 6d. 
This is the first Memoir of the Geological Survey devoted to the 
Carboniferous Rocks of the English Border, and a full description 
