Siris in the shades : a dialogue concerning tar water; between Benjamin Smith, lately deceased, Dr. Hancock, and Dr. Garth, at their meeting upon the banks of the river Styx.

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Siris in the shades : a dialogue concerning tar water; between Benjamin Smith, lately deceased, Dr. Hancock, and Dr. Garth, at their meeting upon the banks of the river Styx. Public Domain Mark. Source: Wellcome Collection.