The Royal Society Library holds regular public lectures which focus on the history of science. The events are free and based on a first-come first served system. Please email library [at] royalsociety [dot] org to book a place, and see the programme of events http://royalsociety.org/page.asp?id=7242 for more information.

Many of these talks are also available as podcasts after the event: http://royalsociety.org/page.asp?id=3966