363 
trie YORKSHIRE BOULDER COMMITTEE 
AND ITS SEVENTH YEAR’S WORK. 
THOMAS TATE F-G.S., 
Leeds; Hon, Sec. to the Yorkshire Bouider Commtttee. 
THE special sub-committees organised or projected, as intimated in 
our last report, have prosecuted their labours, in the main, satis- 
factorily during the past year 
The annual meeting of the Yorkshire Naturalists’ Union being 
held last November at Huddersfield, advantage was taken thereof 
to start a sub-committee for exhaustively exploring the Holme and 
Colne Valleys, two tributaries of the Calder. After a very careful 
examination of the river-gravels, the Hon. Sec., Mr. Joseph Field, 
reports that they ‘have failed to find an Erratic boulder in the whole 
_ distance from the water-shed of the Pennine to the junction with 
the Calder,’ a conclusion entirely in harmony with the observations 
Of several members of this Committee. 
The investigation of the main valley of the ‘Cader is being 
prosecuted with vigour. The reports from the river-head and its 
upper waters have not yet come in. Mr. James Spencer, Halifax, 
has supplied a valuable series of personally collected specimens 
from a ease tine saan Bridge, North Dean, Elland and 
Mirfield, fi , this Committee. — a 
es Berets ionally good w work has been done by Mr. John Burton, 
_ Horbury, iai patiently following the excavations necessary for the 
oy Horbury new sewage works, has collected several. hundreds" of ope 
__ typical boulders foreign to this water-shed. oe. 
_ Avaluable e report from Mr. Chas. W. Peet, Wakefield, cece. | 
the: valley from Thornes to ‘Stanley, completes our account of the 
Yorkshire C 
_aceompanying this report are all of small size, Se mee 004 
‘mainly along the banks of the river, no excavations ble. 
_ The distribution of these erratics is probably to ecabiy 
ae eon Elland to Wakefield Heath. Wherever excavations ve Tee a - 
ae executed, | as at Dewsbury and Horbury, the gravel-bed- bas been 
found to be continuous. |The drainage and the gas-works, at the 
former plac coved t is bed over an area exceeding two ‘square — 2 
a a 
alder, nearly to its junction with the Aire. Thespecimens 
