“…It is becoming more and more widely accepted now (e.g. Wood, 1952;Asherson, 1948;Oliver and Leese, 1949;Mount, 1950;Botterell and Drake, 1952;Hooper, 1951;Pennybacker and Sellors, 1948;Riskaer, 1950;Shuster, 1952Shuster, , 1941Medwick et al, 1949;Tinsley, 1947;Ballantyne and White, 1953) that, under cover of these agents, a suppurative brain ksion is "ripe" for surgery when it is sufficiently advanced to produce symptoms and signs, and that to delay surgery in such a case is to withhold from the patient the best chances of recovery. This applies especially to cases with deepening coma (e.g.…”