The National Geographic Magazine, Volume 70National Geographic Society, 1937 - Geography Indexes kept up to date with supplements. |
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Page 170
... ship , possibly much as as. A simple arrangement for distance find- ing is now in use at a number of stations , especially on the Great Lakes . The radio . signal and the sound signal are synchro- nized to be sent at the same instant ...
... ship , possibly much as as. A simple arrangement for distance find- ing is now in use at a number of stations , especially on the Great Lakes . The radio . signal and the sound signal are synchro- nized to be sent at the same instant ...
Page 171
... ship , regardless of fog and storm , and save her crew . Drawn by Charles E. Riddiford A RESCUING VESSEL LOCATES A SHIP THAT GAVE THE WRONG " ADDRESS " When a steamer in distress in fog or storm reports an incorrect position , it now ...
... ship , regardless of fog and storm , and save her crew . Drawn by Charles E. Riddiford A RESCUING VESSEL LOCATES A SHIP THAT GAVE THE WRONG " ADDRESS " When a steamer in distress in fog or storm reports an incorrect position , it now ...
Page 177
... ships during heavy fog and rain . 4 Photograph courtesy The Washington Post SERVICING A HUGE ". regular station ship was sunk by the liner Olympic in May , 1934 ( page 182 ) . Anchored in deep water and close to steamer lanes , a light- ...
... ships during heavy fog and rain . 4 Photograph courtesy The Washington Post SERVICING A HUGE ". regular station ship was sunk by the liner Olympic in May , 1934 ( page 182 ) . Anchored in deep water and close to steamer lanes , a light- ...
Contents
Idaho | 26 |
Australia | 31 |
Ellsworth Awarded the Hubbard Medal______ | 36 |
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