11. A witness then said he had seen Burgess near the Wheal Eliza Mine. 12. John Vivian discovered the mineral at Wheal Kind, in St Agnes, Cornwall. 13. The largest mine was Wheal Vyvyan, which was worked from 1827 to 1864. 14. Wheal Jane was probably seriously worked for tin from the mid-18th century.15. On its north was Wheal Agar, with which it was later to merge. 16. The mines were previously known as Wheals Kitty, Margaret, Mary and Trencrom. 17. There was a branch to Treskerby, serving the mine there and Wheal Chance. 18. Increasingly, allergists are measuring and recording the diameter of the wheal and flare reaction. 19. Wheal Eliza Mine was an unsuccessful copper and iron mine on the river near Simonsbath.20. The last phase was the production of a wheal filled fluid over the original spot.
