280 LAMPLUGH : GLACIAL SECTIONS NEAR BRIDLINGTON. 
England," wherein a new scheme of classification of the drifts is pro- 
pounded (Q. J. G. S., vol. xxxvi., p. 457), and the Basement Clay of 
Holderness appears to be considered as the equivalent of the Cromer 
Till (a correlation which though it cannot be looked upon as in any- 
way proved, yet seems to me the most probable one yet suggested). 
In this paper the author also seems inclined to recognize an 
equivalent of the Basement Clay in the lowest clay of Filey and the 
region to the northward. In 1882, in Part II., op. cit. vol. xxxviii. 
p. 667, of the above-mentioned memoir, Mr. Wood puts forward still 
more distinctly this correlation of the Basement Clay with the 
Cromer Till, and also the view that this clay may extend along 
the coast northward from Flamborough, though it is still argued 
that the shell-beds at Bridlington and Dimlington are in place, 
and that the molluscs lived where they now occur. 
In 1884 I submitted (Quart. Jour. Geol. Soc, vol. xL, p. 312) an 
account of an exposure close to Bridlington Quay, immediately south 
of the section now described of the Basement Clay, with an unusually 
large proportion of shelly inclusions, whereby the list of species known 
from the deposit was raised to over 100 by the addition of 42 species 
not previously recorded, five of these being new to science. 
In 1885 our knowledge of the Drift Deposits of Holderness was 
for the first time put upon a satisfactory basis by the publication of 
the Survey Memoir, written by Mr. Clement Reid (Mem. Geol. 
Survey; The Geology of Holderness). In this work the limits of the 
different divisions of clay are clearly marked out, and a particularly 
full description is given of the Basement Clay and its associated 
deposits, especially as regards their developmxcnt in the neighbour- 
hood of Dimlington. The fragmental and transported character of 
the shell-beds is fully recognized, and lists of the fossils are given. It 
is also pointed out that difficulties exist in believing that the Base- 
ment Clay thins out against the chalk-slope north of Bridlington as 
we had generally supposed. 
Finally, last year, in a report to the British Association (On an 
Ancient Sea-beach at Sewerby, Rep. Brit. Ass. 1888, p. 328). and 
also in another quarter (Congres Geologique : Explications des 
Excursions, p. 164) I mentioned that I had at length been able to 
