Papers on the comparative merits of the catoptric and dioptric or catadioptric systems of light-house illumination
Subtitle: and other subjects relating to aids to navigation.
By: Comp. from British, French, and United States reports and authorities, for the use of the United States Light-House establishment service.
Publisher: Gov't Print. Off.
Published: 1861
Place of publication: Washington
Number of pages: 272
Subjects: Lighthouses -- Lighting.