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Alchemy (2 Subjects)

9. Map of Gibraltar. 10. The constellation of Scorpio. 11. The cap worn by the Doge of Genoa. 12. Drawing of the interior stairway of the Arsenale building, Genoa. 13, 14. Author's study on the light spectre of different types of lanterns. 15,16, 17. Instrument for the distillation of mercury which the author saw in Italy. Instruments of the type were widely used in 17th century alchemist circles.

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Device for water compression.

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