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Frankenberg, Abraham von, 1593-1652; Rebentrost, David, 1614-1703; Keiling, Georg, ca. 17. Jh. · 1718

Several rare chemical processes, hitherto never made known,
but held very secret,
Of which not the slightest mention
is to be found among the authors of chemistry,
Communicated to the press for all lovers of noble chemistry as special Arcana mysteries or secret remedies and as processes found never to fail in Praxi practical application.