The National Geographic Magazine, Volume 110National Geographic Society, 1956 - Geography Indexes kept up to date with supplements. |
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Page 561
... shipworms upstream . By the fall of 1919 wharves began to collapse of their own weight , or through the impact of ... shipworm , this easily spotted marine borer attacks the surface of wood , destroy- ing it layer by layer ( page 563 ) ...
... shipworms upstream . By the fall of 1919 wharves began to collapse of their own weight , or through the impact of ... shipworm , this easily spotted marine borer attacks the surface of wood , destroy- ing it layer by layer ( page 563 ) ...
Page 564
... Shipworms tend to avoid knots and other hard areas in the wood . Their burrows cross but never connect ; respiration fails and the animal dies if the tunnel wall is punctured . University of Miami scientists took this life - size X ray ...
... Shipworms tend to avoid knots and other hard areas in the wood . Their burrows cross but never connect ; respiration fails and the animal dies if the tunnel wall is punctured . University of Miami scientists took this life - size X ray ...
Page 565
... shipworms . But this is not enough ; shipworms might be killed as easily by placing them in a cup of strong coffee or in fresh water , for that mat- ter . The trick is to find something that is not only poisonous but can be in ...
... shipworms . But this is not enough ; shipworms might be killed as easily by placing them in a cup of strong coffee or in fresh water , for that mat- ter . The trick is to find something that is not only poisonous but can be in ...
Contents
Abeokuta Nigeria | x |
Into the Heart of Africa The Weeks Expedition Collecting Birds | xviii |
Alexander Springs Ocala National Forest | xxiv |
Copyright | |
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