The ancestry of the long-lived / by Raymond Pearl and Ruth DeWitt Pearl.

  • Pearl, Raymond, 1879-1940.
Date:
1934

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: The ancestry of the long-lived / by Raymond Pearl and Ruth DeWitt Pearl. Source: Wellcome Collection.

    158/192 (page 140)