1774 second edition of Hill's translation of Theophrastus's lapidary
Theophrastus - History of Stones - Hill (1774).djvu
With an English Version and Notes, Including the Modern History of Gems described by the Author; and many other of the Native Fossils. To which are added, Two Letters: I. On the Colours of the Sapphire and Turquoise;. II. Upon the Effects of different Menstruums on Copper. Both tending to illustrate the Doctrine of the Gems being coloured by Metalline Particles.