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, / - Mifflin, Thomas (Printed by Thomas & Samuel F. Bradford, no. 8. South Front Street, 1798)