of the record with itself would die down to zero much less 
rapidly than in the former case (if both were normalized to 
one at the start). In fact, it is even possible to imagine 
that one could say something about the behavior of the record 
one minute into the future given that, say, one of the "oroups" 
was just starting upe 
Now compare the spectrum for record 22 with the wave record. 
The spectrum has amplitudes of importance in the entire band 
from six seconds to twelve seconds. The wave record is just about 
what one might expect from such a power spectrum. 
Finally compare the spectrum for record 6 with the wave re- 
cord. The spectrum covers a much narrower band from eight to 
eleven seconds. (It even looks as if it could have been obtained 
by the forecast procedures.) The character of the record fits 
the nature of the spectrum qualitatively. 
Trouble occurs though in trying to apply too precise a reason- 
ing to the records and the corresponding spectra. Record number 
5, for example, differs only a little (to the eye) from record 
number 6 and yet the two spectra are very different. It is believed 
that the differences are due to instability of the instrument and 
not to a marked change in the sea surface during the three hour 
interval from record 5 to 6. More precise analysis along the 
lines described herein would eliminate this trouble. 
In conclusion, for part one, quantitative methods of wave 
analysis have been described herein. They appear to be able to 
make it possible to put wave analysis and wave forecasting on a 
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