Vol. XIII.] 
[Part IV. 
PROCEEDII^GS 
OF THE 
YORKSHIRE 
GEOLOGICAL AND POLYTECHNIC SOCIETY. 
Edited by W. LOWER CARTER, M.A., F.G.S., 
AND WILLIAM CASH, F.G.S. 
18Q8. 
THE YOREDALE AND MILLSTONE GRIT ROCKS OF THE UPPER CALDER 
VALLEY AND THEIR FOSSILS. 
BY JAMES SPENCER. 
{Read June lOth, 1898.)^ 
Plate LIX. 
The Millstone Grits occupy the extensive range of hills, 
moorlands, and dales forming the head waters of the river Calder, 
from the anticlinal down to Halifax and EUand. The great 
mountain wall of Kinder Grit, which ranges from Black stone Edge 
on the south to Black Hambledon on the north, with an average 
height above the level of the sea of nearly 1,500 feet, is broken 
through at Todmorden by a valley about two miles in width. 
Here the river Calder from the Burnley valley is joined by the 
[*It was the intention of the late Mr. Spencer to have carefully revised 
all the details of this paper prior to publication, but this intention was 
frustrated by his sudden death. — Ed.] 
