REVIEW. 
23 
It will be noticed that I have included in the 19 ft. 6 in. 
three beds. This plan seems best because it is a great thickness 
for one bed, and, moreover, the bed H. is so soft in some other 
places that it could scarcely be expected to form a conspicuous 
feature in a railway bank. The bed “L” appears to be absent 
altogether here, for although the section extends down some 
35 feet further, measured on the slant, no trace of it is to be 
found ; moreover, on the north side of the line, at a depth of 
about 4 feet (7| feet on the slant) below bed “ J,” there is a 
tolerably good spring of water, shown by the line of rushes 
and the swampy condition of the ground, and this would 
appear to be the base of the set of beds I am describing as 
Middle Lias. The spring is well marked in the tunnel itself 
on the north side, for the brickwork is exceedingly wet to 
a height of seven or eight feet, and all overgrown with lichen. 
The pipes let into the side seem quite inadequate to carry 
off the water; indeed, the water runs out of the tunnel in quite 
a stream. The south side of the bank and tunnel seem quite 
dry, no doubt owing to the inclination of the beds, and 
singularly the spring cannot be detected in either bank on the 
side of the tunnel nearest Crick Station. 
(To be continued.) 
Phillips's Manual of Geology , Vol. II.; Stratigraphical Geology and 
Paleontology. By R. Etheridge, F.R.S. 8vo., XXII. and 712 pp.; 
•- woodcuts, and thirty-six plates. Published by C. Griffin 
and Co., Exeter Street, Strand; price 34s. 
The first volume of this excellent manual (written by Prof. Seeley) 
we noticed some few months hack, and we have now great pleasure in 
announcing the completion of the work by the pen of Mr. Etheridge. 
The frontispiece consists of a coloured geological map of the 
British Isles, which, though necessarily small, is very clear and 
distinct. In the preface the author compares the number of British 
fossils now known—16,000 species, belonging to 3,680 genera—with 
the list given by Prof. Morris in his “Catalogue of British Fossils,” 
published 1854, and which included 4,000 species, belonging to 1,280 
genera. So great an advance clearly demanded an entirely new 
treatment of the subject, and we are glad to say that the book which 
lies before us may be taken as entirely Mr. Etheridge’s own work; 
“the plan of Phillips has been adhered to; but of the text itself, few 
pages of the edition of 1855 now remain.” 
Of all our English writers on geology, Mr. Robert Etheridge was 
probably the best fitted to undertake the description of the extinct 
life whose remains are contained within our rocks. For many years 
palaeontologist to the Geological Survey, the labour of cataloguing 
and describing the fossils collected in every part of England and 
Wales has given him an extreme familiarity with fossils belonging to 
