Consortium for
History of Science, Technology and Medicine

315 Chestnut Street
Philadelphia,PA 19106-2702
info@chstm.org

Babak Ashrafi
Executive Director
ba@chstm.org

Lawrence Kessler
Manager of Academic Programs
lk@chstm.org

Aaron Slater
Office Manager
ams@chstm.org

Alfred Russell Wallace
Image of Alfred Russell Wallace. Wallace was a contemporary of Charles Darwin and co-discoverer of the laws of natural selection, as well as the author of many books on evolutionary science. Image courtesy of the Historical Society of Pennsylvania.