“…Possibly, however, these procedures may show abnormal features in some cases of encephalitis-especially if the latter be more or less localized (e.g. Case 12, with haemorrhagic cerebral softening, of Stuart, O'Brien andMcNally, 1951, andCrawford, 1954); further knowledge is required here. A patient may be so desperately ill that it may be considered wiser to explore for a brain abscess straight away.…”