The comparisons showed that during this period of 461 days the average daily gain of the chronometer was 2.2 seconds.
The mean lunitidal intervals and the mean ranges of tide, together with the approximate geographical positions of the stations, are as follows: -- ---------------+---------+---------+---------+---------+---------- | | | HW | LW |Mean Rise Station |Latitude |Longitude|Interval |Interval | and Fall -- ---------------+---------+---------+---------+---------+---------- | deg.

' | deg.

' |_h_ _m_ | _h_ _m_ | Feet Cape Sheridan | 82 27 | 61 21 | 10 31 | 4 14 | 1.76 Point Aldrich | 83 07 | 69 44 | 7 58 | 1 50 | 0.84 Cape Bryant | 82 21 | 55 30 | 0 03 | 6 22 | 1.07 C.Morris Jesup | 83 40 | 33 35 | 10 49 | 4 33 | 0.38 Fort Conger | 81 44 | 64 44 | 11 35 | 5 15 | 4.06 Fort Conger[6] | 81 44 | 64 44 | 11 33 | 5 20 | 4.28 -- ---------------+---------+---------+---------+---------+---------- The harmonic constants for these places will be given in a paper on Arctic Tides about to be issued by the Coast and Geodetic Survey.
As indicated by its name, a "lunitidal interval" is the time elapsing between the passage of the moon across the meridian of the place or station and the occurrence of high or low water.

If two stations have the same longitude, then the difference between the lunitidal intervals for the two stations denotes the difference in the times of occurrence of the tides.

If they have not the same longitude, then the intervals must be converted into lunar hours (1 lunar hour = 1.035 solar hours) and increased by the west longitude of the stations expressed in hours.
The result will be the tidal hours of the stations expressed in Greenwich lunar time.