210 On the Tides in the great Ne orth: Americimn Lakes. 
though somewhat modified in their height and recurrence by winds, 
and o er terrestrial agents, are, nevertheless, : so regular in their flux 
reflu lux, as to show a constant and inseparable connexion with the 
the level of the lake waters is beyond dispute. 
that these fluctuations, in some places, appear to be as independentof 
atmospheric, as of lunar control. But, while we are unable to refer — 
them to one cause, it does not follow that they must be assigned to 
the other. Gov. Cass did not annex to his observations any note 
the “moon’s southings” at the time. If there were the remotest 
probability that such a reference could be useful, it might still be 
done. But the utter discrepancy between all Iunations and the ebbs 
and floods noted down in his table, renders such a task supererog@ 
kr If the table be examined throughout, there will probably not 
23% an instance, where the time of high water tallies with the 
moon’s southing, admitting the usual retardation. Even if there 
were several such instances, they ought to be regarded as fortuitous 
coincidences, as nothing but a prevailing concurrence would authorize 
us to link them together as cause and effect 
It may be well to draw a few facts from the table, to show the 
regularity and caprice of the times of high water. To avoid any @p- 
pearance of making partial selections, we begin at the first dates. 
July 15th, it was high water at } past 7, P.M. the 16th, atz past 
8, P. M. the 17th, at 8, A. M. the 18th, at noon, and again at; past 
7, P. M. the 19th, at 9, A. M. the 20th, at 4, P. M. the 21st, at } 
past 7, P. M. the 22d, at 4, P. M. the 23d, at 4, P. M. the 24th, # 
4, P. M. the 25th, at 3 past 7,P.M. Making allowance for a a 
of the night, during which no observations were made, the inte 
would still appear without the slightest accordance with planetary af 
traction. They rather, so far as these instances go, evince ¢ some 
thing like a diurnal variation, arising from some local atmospheri¢ 
habitude. Upon reference, however, to the course of the ee = 
stated to have prevailed during those days, we do not find any s¥® 
alternations of its currents, as would sustain such an opinion. — 
It will be seen, as we have before remarked, that the chan ia] 
elevation: are : independent of the course of the winds; that the fluc- e 
nue, notwithstanding the winds remain the same- ile / 
Cass cose a reason why the Fox River should fall, even w = , 
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