Serial No. Suggestion Submitted by Remarks of I.S.S.B. 3. "All the canisters of service respirators in Great Through As in the case of Serial Britain are being recalled at very short notice. M.I.5. No. 2, we are not in a It is believed that a new gas has been discovered position to judge the which is an organic fluorine compound. This compound technical possibilities of was discovered by a distinguished chemist at Oxford, such a rumour, but it might and is able to penetrate the ordinary British respirator cause unnecessary alarm and charcoal.