37 
Yorkshire Naturalists' Union : Annual Report, 1913 
in depth. The disappearance of this natural breakwater was, 
in his opinion, the cause of the serious coast denudation which 
had occurred in the Whitby Bay during recent years, especially 
in the neighbourhood of Rathwaite and Upgang. 
Jurassic Flora Committee. — Mr. J. J. Burton writes:— 
Members of the Committee have had one week-end meeting 
at Gristhorpe and Cloughton, when they had the advantage 
of the guidance and knowledge of Mr. H. Hamshaw Thomas, 
of Cambridge. During the spring and summer also many visits 
have been paid to the escarpments running round from Guis- 
borough to the Kildale Valley and to the very important plant- 
bed of Roseberry Topping. So far as present investigations have 
revealed, the beds to the south of Roseberry are poor in plants, 
but in many places to the east on the main escarpment plant 
remains exist in considerable quantities, although the varieties 
found are so far not very numerous. To the north, on the Nor- 
manby escarpments, plant impressions have been found in the 
shales and sandstones of the estuarine beds, and this area will be 
further investigated in the hope that it may yield some new 
species. A preliminary notice of the plant beds of Roseberry 
Topping was given in The Naturalist for May last. Very large 
quantities of material from the Cleveland area have been sent 
to Cambridge, and are under investigation by Professor Seward 
and Mr. Thomas. 
Glacial Committee— Mr. J. W. Stather informs us that 
Mr. E. E. Gregory, Darlington, reports : — ‘ Bones and antlers 
of the Red Deer have recently been found in the Post-Glacial 
Gravels about one mile south of Darlington. Work is being 
done among the Glacial clays, sands, and boulders of Teesdale 
and the valley of the Skerne, and the Glacial and Post-Glacial 
lakes in the same neighbourhood are receiving attention.’ 
Mr. T. Sheppard, writes : — ‘ Excavations continue to 
be made in the Gravel beds at Burstwick and Kelsey Hill, in 
Holderness. In the latter pit enormous quantities of material 
have been removed, and have revealed many interesting mam- 
malian remains, including the bones of a seal, which is the first 
record for that species from the Holderness Gravels. In con- 
nection with the widening of the North Eastern Railway 
Company’s line on the north Humber shore, west of Hessle 
Station, a long section has been exposed showing boulder clay 
resting upon angular chalk Gravel, of a similar nature to that 
described by Philips, Walton, and the present writer, a little to 
the east of the present exposure.’ 
Micro-Botany and Micro-Zoology Committee. — Mr. J.W. 
H. Johnson, B.Sc., F.L.S., writes: — The work of this Section has 
been actively continued by the members, and much valuable 
1914 Jan. 1. 
