I'm ready for him; I've dampened two sheets of proof-paper and pasted them together.

I spread both of them on the types.

After I've sent the roller over them, I peel the sheets apart and throw the white one, the one that was on top, on the floor.

The bottom one that has the ink-impression on it I pass to the boss.

He sees me peel the top sheet off, and it rouses his suspicions.
"'What's that for ?' he asks.
"I'm filling my pipe as calm as duck-ponds, and explain that the proof-press in which the galley lies is too deep.