As to the vomiting of strange Worms, I give you a late instance not unlike that in this Letter: A Son of Mr. B, living not far off Rippon, about nine years of age, in the month of February last was afflicted with great pain in his Stomach, and continual Vomitings. A Powder was given, wherein was a small quantity of Mercurius dulcis. He (395) thereupon vomited up several strange Worms, two of which were brought to me at York, the one dead, the other alive, and which lived many daies after it came to my hands, and might have lived longer, but that I put it into Spirit of Wine, to preserve it in its true shape. These Worms were very Caterpillars with fourteen legs, viz. six small pointed, the eight middle stumps, and the two hind claspers; something more than an inch long, and of the thickness of a Ducks-quill, thin haired or rather naked, with brown annuli, and a black head. The very same for kind that I have many times seen on Plants, and no doubt, these (as those others) would in due time (if the place had not hindered) have shrunk into Chrysalis's, and changed into Moths. As also those mentioned by Mr. Jessop would have changed to Beetles.