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Credit
[Proofs of the origin of yellow fever, in Philadelphia & Kensington, in the year 1797, from domestic exhalation, and from the foul air of the snow Navigation, from Marseilles, and from that of the ship Huldah, from Hamburgh : in two letters, addressed to the Governor of the Commonwealth of Pennsylvania / by the Academy of Medicine of Philadelphia]. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.