3-17. Navigators may want to predic

3-17. Navigators may want to predict tide levels and times at a greater number of locations than could possibly be listed in Table 1. Therefore, Table 2 (Figure 3-4) was devised to show the subordinate stations, or secondary points between the reference points listed in Table 1. It lists the time and height of the tide for the subordinate station as a correction to the times and heights of the tide at one of the reference stations (identified on each page of Table 2). Depending upon local conditions, the height of the tide at a subordinate station is found in several ways. If a difference for the height of high or low water is given, this is applied as the tables explain. The index and other explanations are provided to assist in finding the proper page of the table to use and to clarify any other unusual situations.