Andreas Cleyer (27 June 1634 – between 20 December 1697 and 26 March 1698) was a German physician, pharmacist, botanist, trader and Japanologist.

Biography

Andreas Cleyer could be called a "soldier of fortune." He began as a modest soldier, and he made his fortune and reputation during the course of a career. He rose in the ranks of the Dutch East India Company (Vereenigde Oostindische Compagnie, VOC), becoming a respected and well-known figure in the VOC's Batavian society. Cleyer added to western botanical, zoological and medical knowledge in the course of his time in Southeast Asia. His collecting and categorizing activities were noteworthy in their number and extent. His name can be found in many 17th century travel accounts (e.g. Heinrich Muche, Johann Wilhelm Vogel, Johann Konrad Rätzel).

Scientific treatises

Cleyer's published work is still available in rare book collections. 1683: Decuria II, Annus I 1684: Decuria II, Annus II 1685: Decuria II, Annus III 1686: Decuria II, Annus IV 1687: Decuria II, Annus V 1688: Decuria II, Annus VI 1689: Decuria II, Annus VII 1690: Decuria II, Annus VIII 1691: Decuria II, Annus IX 1692: Decuria II, Annus X 1695: Decuria III, Annus II 1696: Decuria III, Annus III 1700: Decuria III, Annus V & VI

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