NOTES ON ESSEX GEOLOGY. 
2 77 
and it is suggested that we are “ warned off this district (East 
Anglia) for trials for coal, at all events until more favourable 
evidence turn up.” The reverse has happened so far. 
1906 . 
The second edition of H. B. Woodward’s Soils and Subsoils 
is a work that should be in the hands of everybody who has 
the faintest interest in the geology of the neighbourhood of 
London, dealing as it does with so many matters of general 
interest ; sites for houses, water-supply, drainage, cemeteries. 
The various Geologic formations are described in groups accord¬ 
ing to their general composition : Gravel and sand, Mixed Sub¬ 
soils, Clay, Limestone, and on the map they are grouped under 
Gravelly Series, Sandy Series and Clayey Series. This map 
alone is worth the price of the Memoir. 28 I leave you to appreci¬ 
ate the work for yourselves. 
1907 . 
M. A. C. Hinton figures a molar of the Alpine Vole (Microtus 
nivalis) from the brickearth of Grays. The specimen was the 
first found “as a former inhabitant of Britain.” 29 The species 
is here recorded also from Kent and Somersetshire. But see 
under 1910. 
Vol. i, pt. ii of the Rcpovt of the Royal Commission on Coast 
Erosion contains some references to Essex (besides a good many 
of a general character), for which I am answerable, but I fear 
that they add nothing to what was known before (Evidence pp. 
114, 116, 117. Appendices p. 144). The latter was thought 
worthy of reproduction in the Geological Magazine of 1909. 
The Port of London and the Thames Barrage. A Series of 
Expert Studies and Reports though a book of a general character, 
refers to Essex. The geological conditions in the Tidal River 
are noticed, with a coloured geological map (from London to 
the sea). C. Beadle goes into the question of possible infiltra¬ 
tion from the river (if a barrage were made), discussing the geo¬ 
logical characters of the bed of the river and of the bordering 
marshes. The book should find a place in an Essex Library. 
28 Man. Gcol. Survey, pp. vi., 82, coloured map. Price is 6d. 
29 Proc. Geol. Aseoc., Vol. xx., pi. i., pp. 41, 45. 
30 Pp. vi., 193. 4to., Lond., many plates. 
H 
