Divers gathering pearl-oysters in Western Australia waters. The diver in the background is being staged - a process where he is held for up to half an hour at a certain depth from the surface so that he can move vigourously in order get

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Divers gathering pearl-oysters in Western Australia waters. The diver in the background is being staged - a process where he is held for up to half an hour at a certain depth from the surface so that he can move vigourously in order get

Divers gathering pearl-oysters in Western Australia waters. The diver in the background is being staged - a process where he is held for up to half an hour at a certain depth from the surface so that he can move vigourously in order get rid of the excess of nitrogen out of his body. After diving to great depths the diver has to do this on his return to the surface, as being brought out of the water too quickly can result in paralysis. Date: 1913

Media ID 32220028

© Illustrated London News Ltd/Mary Evans

Body Depth Depths Diver Divers Diving Excess Gathering Gems Half Held Hour Move Neptune Order Oysters Pearl Pearls Process Result Surface Waters Wrestling

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