December 1878 Issue [Article] The mariners’ “cautionary signal” Download PDF Adjust Share by Edward Henry Knight, This article is only available as a PDF to subscribers. Download PDF Tags 19th century Aids to navigation Notices to mariners Signals and signaling United States Weather signals More from Edward Henry Knight The first century of the republic. (Fifth paper.) Mechanical progress. (Concluded.) Printing The first century of the republic. (Fourth paper.) Mechanical progress.–III The first century of the republic. (Third paper.) Mechanical progress.–II Adjust Share