THE next Model Engineer Exhibition, which is of interest to many of our readers, will take place at the Seymour Hall, London, W1, from December 31st to January 10th, Sunday excepted, the doors being open from 10 a.m. to 9 p.m. Admission costs 4s. per adult, 2s. 6d. per child, under fives free. Races will take place over the ECRA slot track and there will be demonstrations of radio-controlled model cars.