NOTE
- The book gives a number of illustrative charts and diagrammes showing principal routes between key places to guide a mariner in general.
- Additionally following charts are found.
- World climatic charts. (jan. – july.)
- Tracks followed by sailing and auxillary powered vessels.
- World ocean currents.
- Loadline rules, zones, areas and seasonal periods.
- OPW is KEPT UPTO DATE BY A PERIODICAL SUPPLIMENT.