Transactions of the Royal Geological Society of Cornwall, Vol 10, p82 - 89
| On the Occurrence of Feather Ore (Plumosite) in Foxdale Mine, Isle of Man, W W Smyth, X: 82-89, 1880. |
| On the Occurrence of Feather Ore (Plumosite) in Foxdale Mine, Isle of Man, W W Smyth, X: 82-89, 1880. |