An unusual degree of tolerance ... Paynocil : the ox-pecker.

Galleries and Reading Room

Library

Shop

Café

We’ll be closed on Monday 6 and Tuesday 7 July, reopening as usual on Wednesday 8 July.

We're running paid user research studies to improve Wellcome Collection online

Take part in research

<p>One of a series of leaflets (African wild animals) issued by C.L. Bencard Ltd. advertising the painkiller Paynocil, showing a picture of ox-peckers sitting on a rhinoceros.</p>

An unusual degree of tolerance : Paynocil : the ox-pecker ...

Licence and re-use