Funny handshakes will be voluntary at one of the most intriguing events of Architecture Week. On 8 November Snezana Lawrence of the Canonbury Masonic Research Centre will give a talk on the relationship between architecture and freemasonry. Lawrence, who has a degree in architecture and is studying for a phd in the history of mathematics, will talk about Thomas Hayter Lewis, the second professor of architecture at University College and an enthusiast for the architecture of the Middle East. His work on the remains of King Solomon's Temple brought him into freemasonry and into Quatuor Coronati, the leading research lodge. Another enthusiast was Banister Fletcher, professor of architecture at King's College who collaborated with his son, Sir Banister Flight Fletcher, author of the eponymous work. Freemasonry in the nineteenth century was, says Lawrence, 'a different animal'; today it's presum- ably just a comparative method.