Sorrell and Son by Warwick Deeping

Kit passed a dramatic and an historic day. He performed three minor operations, with the hard-bitten, kinky-haired casualty sister assisting him with critical and voiceless composure. About three o'clock he had to tackle a rather bad casualty, a compound fracture of the thigh with a pumping artery and a mass of lacerated tissue.

-"Better let Mr. Orange know," said the nurse.