London, Wellcome Institute MS. 4850. 96 folios. 225x160mm. Early 18th Century. Trebbi, Giovanni. Secret diversi, et miracolosi. Raccolti, da me... Farmacopeo, et approbati da altri Medici di gran fama... [Author's holograph MS.] [Illustrated by a symbolic pen-drawn frontispiece of miners digging for gold.]