From the Wikimedia Blog:
The Wellcome Library has donated over 100,000 images on medical history, which have now been uploaded on Wikimedia Commons. The high resolution photographs and scans are used to illustrate a wide range of Wikipedia articles such as disease, art history, cartoons, sexuality and biographies.
Wellcome Images provide free public access to their digital collection online, covering topics from medical and social history to current healthcare and biomedical science. Wellcome Images is part of the Wellcome Collection, with an extensive range of manuscripts, archives, paintings, prints and drawings. See
The collection can be browsed at Category:Files from Wellcome Images on Wikimedia Commons. The mass upload project page with discussion and on-going live reports can be found at Commons:Batch uploading/Wellcome Images.