Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Examination of Coals of Different Origin (report)
Full title - Examination of Coals of Different Origin, with Particular Reference to the Use of Large Coal for Locomotive Purposes. Polish, Westphalian and Dutch Coal compared with Welsh. 21 pages.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.