Photographeil hy C.udney Bingley, Headiugley, Leeil<. 
THORXTO>' fOKCE. 
Copyright. 
1. Photographed by Godft-ey Bingley, Headingley, Leeds. 
CRUMMACK DALE. 
Proc. Yorks. Geol. and Poly tec. Soc, Vol. XIV., Plate XXIII. 
