But this evidently is not the only cause of
the rise of the lake, for, by observation, we find the Niagara River
below the dam, and the surface of Lake Ontario, to have increased in the
same ratio in the same time. Lake Ontario is four feet higher than it
was in 1826.
"Our Legislature has called for information on the subject. And for many
important facts we shall be indebted to the goodness of persons residing
or acquainted at the places where they may exist. The canal
commissioners of the State have desired me to communicate with you,
desiring such data as you may have in your possession relevant to the
subject. And we are induced to trouble you for information respecting
the condition of the water in Lake Superior and other western waters,
believing that your extensive acquaintance and close observation in that
region have put you in possession of facts which will enable you to
determine, with a degree of accuracy, the fluctuations of these waters,
and their present increased or diminished height, as well as to trace
some of the causes which have an influence in producing the results that
are experienced in the rise and fall of the lakes.
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