Doctrine of signatures: a plant with leaves resembling the tongue of a dog, above, and a dog's head, below. Coloured ink drawing, c. 1923, after a sixteenth-century woodcut illustration.
Wellcome Collection

Doctrine of signatures: a plant with leaves resembling the tongue of a dog, above, and a dog's head, below. Coloured ink drawing, c. 1923, after a sixteenth-century woodcut illustration.

1923

CC0 — Public Domain
Wellcome Collection

Lettering: Doctrine of signatures. Plant resembling the tongue of a dog. From a woodcut of the XVI. century.

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