Turning the Pages is an online resource of original copies of many ancient manuscripts now made available by the British Library.
If you are interested in old books on many subjects, this resource is amazing. The books can be read by a program simulating real-time book page turning or by standard photo reproduction. The complete books are shown. This is a small example:
Vesalius’ ‘De Humani Corporis Fabrica’
After a chapter explaining how to assemble a skeleton, and another telling how Vesalius stole a skeleton from a gibbet, comes the famous series of three skeletal men. Posed in front of a barren landscape, the first skeleton rests his arm on a shovel. Next to the skeleton’s right foot is a freshly dug grave, suggesting that he has dug his own grave. The figure serves as an illustration of skeletal anatomy and as a memento mori – a reminder of human mortality.