TIDES OF THE LAKES
Messrs. Sheldon & Reed,
I have perused a letter from Judge Woodward, on this territory, to Doctor Mitchell, of New-York, in which he adduces facts to support the theory of the existence of regular tides in the great lakes. I am not disposed to deny their existence, and I cannot acknowledge that sufficient proof has been exhibited to establish my belief in them.
During the warm months it has been observed that a current of air, commonly called the sea breeze, arises on the lakes and blows towards their shores, during the day time, and as uniformly, during the night and before sunrise, a current, called the land breeze, blows towards the lakes, Every person, perhaps, who has coasted our great lakes, has observed this fact, and, I think, it cannot be doubted for a moment, that this will in some degree account for the ebb and flow which have been observed. The winds have the effect of increasing or diminishing the waters in our Strait (Detroit) one, two, and sometimes three feet.