540 =. TATE: THE YORKSHIRE BOULDER COMMITTEE. 
the Irish Sea glacier. These observations all favour the conclusion 
that the stream of erratics entered the valley from the west. 
The systematic exploration of the eastern area of the County 
has been continued by the members of the Hull Geological Society 
with excellent results. The situation and character of 2,070 
boulders, all over one foot in diameter, have been carefully mapped 
and recorded from the Holderness coast alone. But the most 
valuable records, as bearing upon the ballast hypothesis, relate to the 
finding of boulders of rhomb-porphyry along with other N orwegian 
rocks at no fewer than three inland stations away from the sea beach; 
(1) At Burstwick, six miles north-east of Hull, by Mr. Sheppard ; 
(2) At Red Cliffe, six miles west of Hull; and (3) In a clay pit at 
the top of Bessingby Road, a mile and a half south of Bridlington 
Quay, by Mr. J. W. Stather, F.G.S., Honorary Secretary. 
n response to a courteous invitation from the Council of the 
Yorkshire Geological and Polytechnic Society, this Committee 
devoted two days to the examination of the glacial moraines of 
York and Escrick. A full report drawn up by Mr. Percy F. Kendall, 
F.G.S., the leader of the excursion, will shortly be published. 
The following reports received during the year have been 
accepted :— 
Reported by Mr. J. BURTON, Horbury. 
MiLLwoop, Todmorden. 
I have seen the boulders here. One of Buttermere granophyre 
weighing 15 cwt. has been carted to some gentleman’s estate. 
I found no rock differing from those collected at Horbury. The 
Buttermere granophyre, as in all other parts of the Calder Valley 
which I have examined, were the most abundant. Of course, by fat 
the most of the boulders were local grits; many of them, both grits 
and granites were extra large, much bigger than any I have found 
either at Horbury or Mirfield. | 
MIRFIELD. 
The exposure in the valley at Mirfield I have visited three times. 
At my first visit it was in a favourable condition for viewing. The 
drain, 26 ft. deep, lay open for some length with banks of material 
thrown out and exposed to view. There were some fine specimens 
of Borrowdale andesites and Eskdale granites, very smooth and well 
worn, not a sign of an angle about them. I brought samples of all 
the foreign boulders which I found; these are now in my possession. 
Their proportion was much greater than at Horbury. Among the 
boulders which I did not find at Horbury are some mountain lime- 
stone with encrinites, and one with Producta. At the lower end of 
parcenaair 
Naturalist, 
