6 books
On the Cambrian Conglomerates Resting Upon and in the Vicinity of Some Pre-Cambrian Rocks ... in Anglesey and Caernarvonshire. (from the Quarterly Journal of the Geological Society.).
On the Metamorphic and Overlying Rocks in the Neighbourhood of Loch Maree, Ross-Shire. (from the Quarterly Journal of the Geological Society.).
On the Cae Gwyn Cave, North Wales ... with a Note by C. E. de Rance. (from the Quarterly Journal of the Geological Society.).
On the Metamorphic and Overlying Rocks in Parts of Ross and Inverness Shires ... with Notes on the Microscopic Structure of Some of the Rocks by Professor T. G. Bonney. (from the Quarterly Journal of the Geological Society.).
Further Proofs of the Pre-Cambrian Age of Certain Granitoid, Felsitic, and Other Rocks in N.W. Pembrokeshire. (from the Quarterly Journal of the Geological Society.).
Additional Notes on the Land Plants from the Pen-Y-Glog Slate-Quarry Near Corwen, North Wales. (from the Quarterly Journal of the Geological Society.).