There is a tradition respecting the large top of a cromlech, in Cornwall, that was removed to a brook at a distance, and converted into a bridge; it is said that this stone possessed the power of speech, and answered questions put to it, until on a certain time, it cracked in an effort to speak, and has been silent ever since. This vague tradition must have originated in the oracular use made of the cromlech from whence the stone was taken.

I own, I was thunderstruck* at the report of this singular instance of superstition, and suspended my belief of its existence till I was at length convinced by the testimony of my senses. The old lady, who possesses this miraculous thunderbolt, lives, at this moment, in the parish of St. Keverne, adjoining to Manaccan. She informed me that it was found, many years ago, at no great distance from her house, just after a thunderstorm, half buried in the ground, and was taken up hot and smoking; and that its virtue was accidentally discovered by one of the family, "who lost the rheumatism" merely by handling it. On asking her what was her method of applying her thunderbolt to her patients, her answer was, that "She boil'd 'en for about three hours, and gave the water to her patients, with directions to bathe the part affected; and that she had cured hundreds. - "Boil'd dunderbolt was a vine thing for the rheumatis," said an old man present. - - It is a perfect celt.

A celt (commonly called in this neighbourhood a thunderbolt) was some years ago found on [West Looe] Down. The common people believe these celts to be produced by thunder, and thrown down from the clouds; and that they shew what weather will ensue by changing their colour.