Typescript report by William Galloway on collieries at Glyncorrwg, Glamorgan, with statistics, financial information, a plan, cross sections of seams and a map.

Manuscript report by William Galloway on the Corwg Merthyr colliery, Glamorgan, including a brief history of the Corwg Merthyr Coal Company, with statistics, two plans, cross sections of seams and three cross sections of geological strata.