F.R.S., M.I.C.E. Managing Director, Technical Research Works (Ltd.) and Lush, pure iron would suppress its use. Experiments are being so used; by ‘ordinary commercial navigation ” is now sufliciently reliable for “soft” radiation. The “ Penshurst ” had just been started to get positive ions even when supplemented by dredging. In Burma the most striking recent suc- cesses Of pharmacology have been