A family picking fleas off each other's heads; to the left a baby is harnessed by a rope to the wall, to the right a boy picks fleas off a dog. Etching by B. Pinelli.

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Credit

A family picking fleas off each other's heads; to the left a baby is harnessed by a rope to the wall, to the right a boy picks fleas off a dog. Etching by B. Pinelli. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.