https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13993439![Julius Griffiths. Stipple engraving by E. Mitchell after W.J. Thomson.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9zdGF0aWMvZmlsZXMvd2Vic2l0ZS8yMDI0LTAyL3dja3d1ejJjcTUtaW1hZ2UuanBn.jpg)
![Julius Griffiths. Stipple engraving by E. Mitchell after W.J. Thomson.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9zdGF0aWMvZmlsZXMvd2Vic2l0ZS8yMDI0LTAyL3dja3d1ejJjcTUtaW1hZ2UuanBn.jpg)
Julius Griffiths. Stipple engraving by E. Mitchell after W.J. Thomson.
Julius Griffiths. Stipple engraving by E. Mitchell after W.J. Thomson.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use