$9 On the supposed Tides in the 
ered weg water ;—again it would be level, and no water 
aren 
a erence to some of my notes, it will be seen that 
the alate aa swelled against the wind. This fact would 
seem to militate against any theory, assigning the rising to 
the winds, if it were not known that the outlet of Fox river 
is very serpentine, forming two or three deep curves in the 
course of a less number of miles. Hence the wave, heaped 
up by winds prevailing up the Bay, would be likely still to 
continue to roll into the river, sometime after the impu ulse 
ad ceased, and even after the wind had changed 
Existing facts do not establish either the negative or affirm- 
ative; though I think it pretty clear, that the Green 
fi ides, or whatever they may be called, are independent of 
all celestial influence ; for no one pretends that they ever 
appeared to acknowledge any fealty to the planets. 
It is rather the easiled couion here, among those, who 
have reflected much o} that whatever changes 
in the level of the eater ie mes Minn 
winds. That there has been a doubt in fn tie case of Gree 
Bay, is probably owing to the singular configuration of chat 
deep inlet, and the sinuous outlet of the Fox river, when the 
effect is often so tardy, in following the cause, and sometimes, 
even running counter to it, as to sever all apparent connex- 
ion between them. 
Note,—Capt. Whiting having informed me in a letter of 
the 16th of April, 1827, that Gov. Cass would hold a treaty, 
at Green Bay, during the summer, I had requested him, to 
desire the Governor, to make experiments, and to be so kind, 
as to te to me, the results, which, with his usual 
liberality, he was so generous as to say he would do; but un- 
fortunately, his Soke official duties prevented. H. ‘A. S. D. 
Letter from Capt. Greenleaf Dearborn, of the U. S. Army. 
Monmouth, Maine, March 5, 1827. 
My dear Sir—By the last mail, I received your favor of 
the 26th ult. and hasten to answer it, as far as my knowl- 
edge extends. 
About the 15th of May, 1825, while stationed at the 
Sault de St. Marie, at the outlet of Lake Superior, I obser- 
ved, for three successive days, a regular ebb and flow of the 
