Over the years our society has hosted countless excellent lectures. Over the coming months we will be digitising our lecture archive and putting them online for you to listen to. Some of the recordings are over thirty years old and so the sound quality is variable. As the recordings have been transferred from tape there may be a short pause at the beginning of the recording and during the recording where the tape has been turned over. You may need to adjust your speaker volume to a comfortable listening level. We hope you enjoy listening to the lectures.