“…The physical signs are very variable, but a rise in temperature was found in 83.5 per cent of our patients: this contrasts with an incidence of 50 per cent in otther series (Edlin and Sullivan, 1953;Fogerson and Shedd, 1955), and disagrees with the description by Cope (1963) of a sub-normal temperature. Shock and hypotension were infrequent findings, and Fallis (1953) has stressed the rarity of these signs.…”