28 o 
NOTES ON ESSEX GEOLOGY. 
smaller Mammalia is most praiseworthy, treated of “ British 
Fossil Shrews.” 35 He records one specimen from the brickearth 
of Grays, but refrains from naming it : it had previously passed 
as Sorex vulgaris (p. 533 )- The new species (.Neomys browni 
also comes from Grays, and is known only from there, (p. 535.) 
1912 . 
The Rev. E. Hill’s paper on “ Glacial Sections around Sud¬ 
bury,” 30 deals with Essex as well as with Suffolk, as Ballingdon, 
on the right side of the Stour opposite Sudbury, is in our county, 
and is referred to on pp. 24, 26, 27. The author concludes that 
the Stour Valley is pre-Glacial, that a great mass of Boulder 
Clay has been removed, and that some of the low lying masses 
of Boulder Clay, which are in peculiar positions, were not formed 
in place, but “ are as much boulders as any mass in the gravel ; 
plainly they have been transported.” All of them are below 
the level of the base of the great mass of Boulder Clay and are 
on the slopes of the valley and “ clay can slip down very 
moderate slopes.” 
When, long ago, I first saw and recorded many of these most 
interesting sections (the finest set of inland sections of Glacial 
Drift that I have seen), I was greatly puzzled by them, and 
was disposed to regard these anomalous beds as belonging 
to the Lower Glacial of Wood. Mr. Hills’ ingenious explanation 
is accepted by P. G. Boswell, who is working so well at East 
Anglian geology ; but I think that the question can hardly be 
looked on as definitely settled ; the infilling of our deep channels 
of Glacial Drift consists of other materials besides Boulder Clay. 
S. H. Warren’s paper on a Late Glacial Stage in the Valley 
of the Lee (with its various appendices by other authors) is 
based on sections just over the border, in Middlesex, 37 and does 
not deal specifically with Essex. Though therefore 1 may spare 
myself from noticing it, I am bound to add that no geologist 
has any business to deal with the valley that forms the border 
of our county without studying this elaborate work of our new 
President. 
In this year there was a correspondence on the subject of 
35 Gt’ol. Mag, dec. v., Vol. viii., p. 529, etc. 
36 Quart. Jourii. Geol. Soc., Vol. lxviii., p. 23. 
37 Quart. Jourii. Geol. Soc., Vol. lxviii., pp. 213-251. 
