Four dogs: Above, a Makenzie River dog and a Esquimaux dog, below, a Thibet dog and a Wild Indian dog. Coloured etching by T. Landseer.

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Four dogs: Above, a Makenzie River dog and a Esquimaux dog, below, a Thibet dog and a Wild Indian dog. Coloured etching by T. Landseer. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.