Topping Out Ceremony
The Robert and Penny Fox Research Tower (in progress)
Placing the last steel beam into position. Its called a "Topping Out" ceremony, and all of Wistar took part in signing the final piece of the new research tower's skeleton.
The microscope in the image belonged to William E. Horner, M.D., a collaborator with Caspar Wistar, M.D., in the early 1800s.
Dr. Horner, a lecturer at the University of Pennsylvania, was a pioneer of the use of microscopes in anatomical and medical research. He authored Special Anatomy and Histology, a seminal text on the subject.