109 
THE YORKSHIRE BOULDER COMMITTEE 
AND ITS SIXTH YEAR’S WORK. 
THOS: TATE. FG.S., 
Leeds; Honorary Secretary 1o the Committee. 
THE Yorkshire Boulder Committee have comparatively few erratic 
blocks to report this year, nearly all the known examples having 
been previously recorded. This being the case, they have been at 
liberty to make important advances in their method of research, and 
to devise new modes of operation. 
During the year their attention has been mainly given to 
maturing a scheme for the careful and exact exploration of special 
glacial districts not hitherto investigated. hey began with the 
Mr. John Burton, of Horbury, who, patiently following the excava- 
tions necessary for the new sewage works, has collected an extensive 
series of typical boulders, the identification of which promises to 
lead to some valuable results. These the committee hope to embody 
in their next annual report. 
They intend also to present a similar report on the Sedbergh, 
Garsdale, and Dentdale district, now being investigated after the 
Same fashion. 
During the past year a sub-committee has been engaged upon 
the preparation of a new and enlarged Glacial Map of Yorkshire, on 
a scale of one inch to the mile ; towards the cost of which map this 
committee gratefully acknowledges a grant of £3 10s. od. from the 
Erratic-Blocks Committee of the British Association. 
The following erratic blocks have been recorded during the past 
year :— 
Reported by Mr. J. J. MARSHALL, Chemist, Market Weighton. 
On Mr. Brough’s farm, Reformatory Road, Market Weighton, 
an isolated Jurassic sandstone boulder, 19 x 13 x 10 inches, angular 
with rounded edges; no rocks like it near, but gravels and sands of 
4 similar character ; recently found when ploughing, now removed 
to near the farmhouse. 
April 1292, 
