Of course, his fellow Skull and Bones man, Mr Bush, can hardly claim that he was born on the wrong side of the tracks.

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Along with the sketches came a cartoon self-portrait of a tall, thin, many-armed young man dipping a pen into his skull, which had sprung open like an inkpot.

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Mullah Mairbek Yusupov is a small bearded man dressed in a green surgeon-style top and skull-cap.

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The skull itself has been used to reconstruct the likely appearance of the man while alive.

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Only later did his measurements show that the skull-cap was from a new transitional species, pithecanthropus erectus, the upright ape-like man.

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With electrodes fixed to his skull, Mr Styffe fixed his mind on game characters, such as a juggler or a Pac-Man-like blob fleeing ghosts in a maze.

ECONOMIST: Monitor