1862 London Exhibition: Catalogue: Class I.: John Nicholls
249. NICHOLLS, JOHN, Trekenning House, near St. Columb.
Copper and lead ores from Freton Mine; slates from Penpethy Quarry, near Delabole; porphyry from quarries near Newquay.
- a. China stone from Trerice, St. Dennis, Cornwall.
- b. Manganese and iron ores from two lodes in Trerice, St. Dennis.
- c. Copper and lead ores from Trelow, in St. Issey, Cornwall.
- d. Three specimens of porphyry from quarries near Newquay, Cornwall; obtainable in blocks of enormous size.
- e. A block of trap stone, of exceedingly durable quality, from a quarry on the manor of Cannalidgey, in Cornwall.
- f. Hard Cornish slates, from Penpethy quarry (adjoining Delabole) near Camelford— "Princesses" and "Duchesses."
All the above are obtainable in large quantities from quarries and mines on land belonging to one exhibitor who is ready to receive applications for setts or licences.
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