The fog problem in navigation and marine traffic control
Subtitle: a proposed radio signal system
By: by Theophole Brockstedt.
Publisher: J. A. Ephraim Co.
Published: 1926
Place of publication: San Francisco, Calif
Language: eng
Subjects: Norlina (Steamship).; Navigation.; Aids to navigation.; Marine radio stations.; Fog.; Shipwrecks -- California -- Farallon Islands.
Notes: Cover title.

Contains a brief account of the wreck of the S.S. Norlina in the fog off of San Francisco in 1926.