Transactions of the Royal Geological Society of Cornwall, Vol.4 p57 - 69
| On some of the Deposits of Stream Tin-Ore in Cornwall, with remarks on the Theory of that Formation, W J Henwood, [Read in 1828 & 1829], IV: 57-69. |
| On some of the Deposits of Stream Tin-Ore in Cornwall, with remarks on the Theory of that Formation, W J Henwood, [Read in 1828 & 1829], IV: 57-69. |