'I slept very comfortably with half a dozen smoke-dried human skulls suspended over my head'The great Victorian scientist's heroic adventures across South-East Asia, from Singapore to the wilds of New Guinea, encountering head-hunters, jungles, birds of paradise and new discoveries that would change the world.A new series of twenty distinctive, unforgettable Penguin Classics in a beautiful new design and pocket-sized format, with coloured jackets echoing Penguin's original covers.