On the Drifts of the Vale of Clwyd and their Relation to the Caves and Cave-deposits
- 1 February 1887
- journal article
- Published by Geological Society of London in Quarterly Journal of the Geological Society
- Vol. 43 (1-4), 73-120
- https://doi.org/10.1144/gsl.jgs.1887.043.01-04.09