. "Thacher's tracts"@en . "Early works" . "Early works"@en . "Proofs of the origin of the yellow fever, in Philadelphia & Kensington, in the year 1797, from the 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"@en . . . . . "Origin of the yellow fever in Philadelphia and Kensington in the year 1797"@en . "Proofs of the origin of the yellow fever, in Philadelphia & Kensington, in the year 1797, from the 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"@en . "Proofs of the origin of yellow fever"@en . . . . . . . . . . . . "Proofs of the origin of the 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 Govenor of the Commonwealth of Pennsylvania"@en . . . . "Proofs of the origin of the yellow fever" . . . "Proofs of the origin of the yellow fever, in Philadelphia & Kensington, in the year 1797, from the 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" . "Proofs of the origin of the 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"@en . . . . . . "Electronic books" . . . "Proofs of the origin of yellow fever in Philadelphia [et] 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" . . "History"@en . . . . . . . "Proofs of the origin of the yellow fever, in Philadelphia & Kensington, in the year 1797, from the 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" . . "Proofs of the origin of the yellow fever, in Philadelphia & Kensington, in the year 1797, from the 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"@en . "Thomas & Samuel F. Bradfors (Firm)," . . "Yellow Fever Pennsylvania." . . "Disease Outbreaks Pennsylvania." . . . .