IN further development of the work which is now being carried out by a committee of the Chemical Division of the British Standards Institution in the standardisation of laboratory ware including scientific glassware, British standard specifications have just been issued for graduated measuring cylinders, Crow receivers, Nessler cylinders and Petri dishes. Copies of the specifications (Nos. 604, 605, 612 and 611-1935 respectively) may be obtained from the Publications Department, British Standards Institution, 28, Victoria Street, London, S.W.I, price 2s. 2d. each post paid.