London, Wellcome Institute MS. 1295. 12 + 427 folios. 190x130mm. [Perugia.] 18th Century [1700] Julius de Boncambis. Libro lettera H. A collection of alchemical and chemical receipts, processes and 'secrets': including several short treatises by alchemical authors. Illustrated with a few rough pen-drawings of alchemical apparatus. f1-34 Libro de secreti diversi di diversi Autori... Ridotti da N. N. di N. N... f35-53 N. de N. Opera sopra il Lapis Animale Vegetabile Minerale, cauta da diversi Authori... f54-161 [Miscellaneous receipts and processes.] f162-323 [Miscellaneous alchemical processes and receipts.] f324-325 R. Lullius. Investigatio secreti occulti [in Italian.] f335-337 [Alchemical receipt.] f338-343 Modo di far il Lapis Filosophorum. f344-347 [Alchemical receipts.] f347v-415 [Extracts from works of Sendivogius.] f416-417 [Alchemical receipts.]