The National Geographic Magazine, Volume 70National Geographic Society, 1937 - Geography Indexes kept up to date with supplements. |
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Page 184
... buoy , for there is neither light nor buoy to be found anywhere in all these thousands of miles of villainous river . " Years later , but still in the period of numerous steamboats , few lights and no buoys , the writer of this article ...
... buoy , for there is neither light nor buoy to be found anywhere in all these thousands of miles of villainous river . " Years later , but still in the period of numerous steamboats , few lights and no buoys , the writer of this article ...
Page 193
... buoys mark the sides of the chan- nels as well as shoals , rocks , or wrecks . Their upkeep is an endless task for the fleet of lighthouse tenders , which con- stantly pick up and set out the buoys , re- store them to their proper ...
... buoys mark the sides of the chan- nels as well as shoals , rocks , or wrecks . Their upkeep is an endless task for the fleet of lighthouse tenders , which con- stantly pick up and set out the buoys , re- store them to their proper ...
Page 194
... buoy requir- ing the particular attention of the naviga- tor such as a buoy marking an obstruc- tion or danger , a turn in a channel , or a restricted entrance . Slow - flashing buoys ( not over 30 flashes a minute ) indicate the sides ...
... buoy requir- ing the particular attention of the naviga- tor such as a buoy marking an obstruc- tion or danger , a turn in a channel , or a restricted entrance . Slow - flashing buoys ( not over 30 flashes a minute ) indicate the sides ...
Contents
My Flight Across Antarctica By LINCOLN ELLSWORTH__ | 1 |
Little laboratories Boston Massachusetts | 64 |
Clearwater river Idaho | 133 |
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