Collegio A Volta VOLTA LECTURE 2012/13 17, via A Ferrata, 27100 Pavia. Tel ++39 0382 548511. Web http://www.collegiovolta.org/ Universita’ di Pavia Donald Johanson 9 April 2013 at 5.30 pm Further information from E Gherardi <[email protected]> Africa and the Origins of Humankind Institute of Human Origins Arizona State University