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Chart of all Alchemy printed books

This is a chart showing the history of alchemical publication in all languages. Note the three main peaks : the first in 1560-70 - the second 1610-1620 during the 'Rosicrucian period' - and the third 1650-1685. There is a gradual dimishing in the number of alchemy books published through the 18th century with a small increase in publications around 1785.
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