'Smith,' I said, 'I want you to get some books for me first thing tomorrow. You had better take a note of them.'

He moistened his pencil.

'A Latin Grammar.'

'Yes, sir.'

'A Greek Grammar.'

'Yes, sir.'

'Brodley Arnold's Easy Prose Sentences.'

'Yes, sir.'

'And Caesar's Gallic Wars.'

'What name, sir?'