On Iso-diametric Lines, as means of representing the Distribution of Sedimentary Clay and Sandy Strata, as distinguished from Calcareous Strata, with special reference to the Carboniferous Rocks of Britain
- 1 February 1862
- journal article
- Published by Geological Society of London in Quarterly Journal of the Geological Society
- Vol. 18 (1-2), 127-146
- https://doi.org/10.1144/gsl.jgs.1862.018.01-02.27