Transactions of the Royal Geological Society of Cornwall, Vol.6 p84 - 90
| A Sketch of the Origin of Mining Laws in Europe, the late J Hawkins, [Communicated by Sir C Lemon], VI: 84-90. |
| A Sketch of the Origin of Mining Laws in Europe, the late J Hawkins, [Communicated by Sir C Lemon], VI: 84-90. |