https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13965727![A chemical lecture at the Surrey Institution. Coloured etching by T. Rowlandson after his drawing, 1809.](https://images.rawpixel.com/image_social_landscape/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djdTJhdXdrdnItaW1hZ2UuanBn.jpg)
![A chemical lecture at the Surrey Institution. Coloured etching by T. Rowlandson after his drawing, 1809.](https://images.rawpixel.com/image_social_landscape/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djdTJhdXdrdnItaW1hZ2UuanBn.jpg)
A chemical lecture at the Surrey Institution. Coloured etching by T. Rowlandson after his drawing, 1809.
A chemical lecture at the Surrey Institution. Coloured etching by T. Rowlandson after his drawing, 1809.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use