Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books 1 - 7 of 7 on ... as before, or because he does not hear it at all. ' ' He should not assume that....
" ... as before, or because he does not hear it at all. ' ' He should not assume that the fog-signal has ceased sounding because he fails to hear it even when within easy earshot. " He should not assume that the aberrations of audibility which pertain to... "
Aberrations of Audibility of Fog Signals: A Paper Read Before the ... - Page 36
by Arnold Burges Johnson - 1882 - 15 pages
Full view - About this book

Bulletin of the Philosophical Society of Washington, Volumes 4-7

Philosophical Society of Washington (Washington, D.C.) - Science - 1881
...He should not assume that the fog-signal has ceased sounding because he fails to hear it even wheu within easy earshot. He should not assume that the...his upper sails fill and his lower sails flap ; nor wheu his lower sails fill and his upper sails flap. He should not expect to hear the fog-signal so...
Full view - About this book

Bulletin of the Philosophical Society of Washington, Volumes 5-6

Philosophical Society of Washington (Washington, D.C.) - Science - 1883
...to it because he hears the sound plainly. He should not assume that he has reached a given point on his course because he hears the fog-signal at the...lower currents of air run in different directions ; tuat is when his upper sails fill and his lower sails flap ; nor when his lower sails fill and his...
Full view - About this book

The Fogs and Fog Signals of the Pacific Coast of the United States: Pub. for ...

Ferdinand Lee Clarke - Fog - 1889 - 39 pages
...should not assume that he has reached a given point on his course because he hears the fog- signal at the same intensity that he did when formerly at...when his upper sails fill and his lower sails flap; or when his lower sails fill and his upper sails flap. ' ' He should not expect to hear the fog-signal...
Full view - About this book

The Modern Light-house Service

Arnold Burges Johnson - Lighthouses - 1889 - 137 pages
...to hear it even when within easy ear-shot i He should not assume that the aberrations of andibility which pertain to any one fog-signal pertain to any...well when the upper and lower currents of air run in diffcrent directions; that is, when his upper sails fill and his lower sails flap, nor when his lower...
Full view - About this book

History of American Steam Navigation

John Harrison Morrison - Steam-navigation - 1908 - 630 pages
...that about the time of a change in the wind the sound is not generally heard as far as usual; that when the upper and lower currents of air run in different directions, or when the upper sails fill and the lower sails flap, or conversely, the signal is not to be depended...
Full view - About this book

Lost Sounds: The Story of Coast Fog Signals

Alan Renton - Transportation - 2001 - 209 pages
...should be well within ear-shot. He also said that the mariner should: 'not expect to hear a fog signal as well when the upper and lower currents of air run...when his upper sails fill and his lower sails flap; or when his lower sails fill and his upper sails flap'. Chad wick was also very specific about the...
Limited preview - About this book

British Merchant Service Journal 1882 Vol.IV No.I

British Merchant Service Journal 1882 Vol.IV - 1882
...pertain to any one fog-signal pertain to any other fog-signal. He should not expect to hear a fog signal as well when the upper and lower currents of air run...sails flap ; nor when his lower sails fill and his uppei sails flap. He should not expect to hear the fog-signal sc well when between him and it is a...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download PDF