London, Wellcome Institute MS. 873. 28 folios. 410x260mm. Unbound. 18th Century [c. 1725.] [Alchemical notes and extracts from alchemical authors: in German.] [The first leaf contains a symbolic alchemical pen-drawn figure. The latest work mentioned in the text is Crosset de la Haumerie (i.e. Alexandre le Crom) 'Les Secrets les plus cachés de la Philosophie des Ancients', Paris, 1722.