48 The Sea 
Table also states that the average height of high water at 
that locality is 5.4 ft. above mean low water. 
Example No. 2. 
April 17, 1944. Moon is slightly smaller than half moon. It 
is waning (growing smaller night after night). From the 
table we estimate that such a moon will be in transit about 
0700. Supposing we are in Hamburg, we look up the estab- 
lishment in the Tide Tables (or an old Bowditch) and find 
0440. Add these two figures: 
0700 
+0440 
1140 
_ That is, the next high tide will be at about 1140 standard 
time. The tables tell us it will be about 7 feet high. 
Having found the time of one high water it is easy enough 
to find the time of a few preceding and succeeding ones. 
High waters are separated by intervals of about 12 hours and 
25 minutes. 
en . 
CC a 
