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 it formed the basis of a secret remedy employed there by a negro slave in endemic malignant fevers. The negro's name was reported as Quassi, and from this Linnæus invented the name of quassia. This bitter wood was obtained from a shrub growing in Dutch Guiana, but for the English market it was subsequently superseded by the wood of a large tree growing in Jamaica, belonging to the same genus. The earlier product is, however, still used in France and Germany. Ritman, who was in Surinam in 1756, said he had met with the old negro, Quassi, there, and reported that he was almost worshipped by some, while others suspected him of magic. Ritman, however, found him a simple old man skilled in old women's medicines.

Sarsaparilla was introduced to Europe early in the sixteenth century, and soon leaped into fame. The great Emperor Charles V, was cured of gout by it, or fancied he was, and this gave it an enormous advertisement. It appeared afterwards that it was really China root, another smilax, that was given to the Emperor, but it was called sarsaparilla, and the western medicine got the glory. Sarsaparilla was vaunted as a cure for syphilis, but physicians were not long in discovering that it was much more effectual whenever it was combined with mercurials. Its advocates insisted that it was a wonderful sudorific, and for many years a "sweating cure" was practised in Denmark and Sweden with apparent success. As a matter of fact sarsaparilla has no sudorific properties whatever; but it was given in long draughts, other more effective medicines were associated with it, and vigorous exercise and heavy