Ereiniog prepared peat, from Portmadoc, and specimen of charcoal made from the same, examined by R. Smith, 1875, This peat yields on an average 27.8 percent charcoal
Ereiniog prepared peat, from Portmadoc, and specimen of charcoal made from the same, examined by R. Smith, 1875, This peat yields on an average 27.8 percent charcoal