Lighthouse illumination
being a description of the holophotal system, and of azimuthal-condensing, and apparent lights, with other improvements.
Materias
Ediciones (1)
- Lighthouse illumination (1859)
J. Weale · inglés
being a description of the holophotal system, and of azimuthal-condensing, and apparent lights, with other improvements.
J. Weale · inglés
