These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Amgueddfa Cymru – Museum Wales
26 pages with 4 black & white plates and 7 tables. Extract from "Transactions of the Institution of Mining & Metallurgy" Vol. 74, part 6, 1964-65. Content summary : Processes and developments of the industry and history of process and its different sites.
