In Numb. 1. 2. and 5. several Relations have been made belonging to this Argument. Much of it, together with considerable Reflections may be seen in Mr. Boyle's Essay of Firmness: In Helmont de Lithiasi, where, among other remarques, is recited the Testimony of Paræus, of a Petrified Child seen at Paris, and by the Owner used for a Whetstone: In Deusingius's Historia Infantis in abdomine inventi, & in ducitiem lapideam conversi: In Mr. Hook's Micrography, and in others. To omit now, what has been related (but perhaps not well enough attested) by Authors, concerning the stupendious Petrification of whole Companies of Men, and Troops of Cattle; by Aventinus lib. 7. Annal. Bojorum; by Purchas in his Pilgrimage p. 426. in fol. printed at London 1614. and, (of a Troop of Spanish Horsemen) by Jos Acosta lib. 3. c. 9.