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Mellon Collection, Yale University Library MS. 128.
51 folios. Paper. 321x197mm. 18th Century [c. 1780.]
Georg von Welling. The rise, properties and use of sulphur, and of mercury [extracts from Opus mago-cabalisticum et theosophicum, parts II-III, anonymously translated into English.]
[This is a continuation of Mellon MS. 127.]