Papers on the Comparative Merits of the Catoptric and Dioptric Or Catadioptric Systems of Light-house Illumination: And Other Subjects Relating to Aids to Navigation |
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Papers on the Comparative Merits of the Catoptric and Dioptric Or ... United States Light-House Board No preview available - 2018 |
Papers on the Comparative Merits of the Catoptric and Dioptric Or ... United States Light-House Board No preview available - 2018 |
Papers on the Comparative Merits of the Catoptric and Dioptric Or ... United States Light-House Board No preview available - 2015 |
Common terms and phrases
adopted advantages amount annual apparatus appears application arrangement attended beacons Board brilliancy buoys burners catadioptric catoptric charged coast colza combination commission compared consequence consideration considered construction cost course diameter dioptric direction distance divergence eclipses economical effect eight employed engineer equal established estimates expense experiments feet fitted five fixed lights flame flashes four France Fresnel give glass greater half harbor horizon hour hundred illumination important improvements inches increase iron keepers kind lamp lantern lens lenses lenticular less light-house manner means mechanical metallic miles minutes mirrors moorings nearly necessary object observations obtained ordinary Paris placed position practical present principal produce proper rays received reference reflecting reflectors render repairs respect revolving revolving light Secretary seen side sufficient supplies surface third tion tower United vessels whole wicks
Bibliographic information
| Title | Papers on the Comparative Merits of the Catoptric and Dioptric Or Catadioptric Systems of Light-house Illumination: And Other Subjects Relating to Aids to Navigation |
| Author | United States. Light-House Board |
| Publisher | U.S. Government Printing Office, 1861 |
| Original from | Princeton University |
| Digitized | Apr 6, 2010 |
| Length | 272 pages |
| Export Citation | BiBTeX EndNote RefMan |