An unusual method of teaching architecture reaches me from the University of Cincinnati. Yesterday students, in groups of three, were to build eight-foot-long bridges made of organic materials like wood, rope and string. Then they had to stand on it to see if it held up to the challenge. If it did, fellow students were asked to pile on until it did finally succumb. The university says that the best should be able to withstand 160 pounds of architect for every pound of bridge - but expects the average to be nearer 120 pounds of architect (or student). Awards, I gather, include one enchantingly titled 'You Should Have Let The Glue Set' prize.