London, Wellcome Institute MS. 388. 1 + 76 folios. 210x170mm. Mid 17th Century. Liber de Elixire Vitae secundum Ortulanum et Rosarium. Breviloquium de Lapide Philosophico. Item de Quinta Essentia et preparationibus similibus. [In English and Latin.] 1. ff1-2 Johannes Pauper. Elixir Vitae Orlon [sic] et Rosarius [In verse.] 2. ff3-33 Johannes Pauper. [Prose commentary on item 1.] 3. ff33v-36 R. Carpenter [Alchemical poem.] 4. ff36v-45 [Alchemical tract.] 5. ff46-59 Johannes Pauper. Breviloquium. 6. ff61-77 J. de Rupescissa. De consideratione quintae essentiae. [Extract.] [cf. MS. Ashmole 1418.]