a= 
393 
THE YORKSHIRE BOULDER COMMITTEE AND ITS, 
ELEVENTH YEARS: WORK, 1896-97. 
va 
J: H. HOWARTH? *.G.S.; 
Bradford ; Hon. Secretary to the Committee. 
Tue work of the Committee during the year has been > had 
affected by the great loss sustained in the death of Mr. Thom 
Tate, F.G.S., their valuable and indefatigable hon. feet 
but some enehol additions have been nage to our knowledge of 
_ erratics in the county. 
_ Mr. P. F. Kendall, F.G.S., reports augite-syenite (Laur- 
vikite) at Saltburn, and rhomb-porphyry at Staithes, both the 
most northerly points at which these rocks have been recorded. 
Mr. H Corbett, M.R.C.S., reports Shap granite from 
Cusworth, near Doncaster (the most southerly record in the 
county so far), and others which require identifying. One 
matter of much interest arises from Holderness. Dr. Munthé, 
of Upsala University, has recognised in Mr. Stather’s collection 
from the boulder clay of Holderness two rocks from localities 
adjacent to the Baltic, viz., a ‘Post-Archean’ granite from 
Angermanland or Aland, in Sweden, and a Halléflinta, which is 
Swedish (?Smaland). These are much further east than pre- 
viously recorded sources. The investigations of Mr. Stather 
in 
are of a species, Belemnttella lanceolata, which has never been 
found in the Yorkshire chalk, and is, presumably, therefore of 
foreign origin. 
Mr. fobs Burton has continued his researches in the Calder 
water, but whether they have been brought down the valley to 
Horbury by a glacier, or smoothed by one in the north-west and 
floated down by ice on the river surface and dropped at Horbury, 
he does not know.’ 
Reported by the Rev. C. ic, PRATS, 
ae Bortoms, NOBLETHORPE. 
. Cleaved volcanic ash (probably Lake District). Now| 
removed to the entrance of the Museum at Cawthorne. 
ae ‘ 
