"There are more things in heaven and earth, Horatio,
than are dreamt of in your philosophy."—Shakespeare.
FAIRBANKS, BENEDICT & CO., PRINTERS,
Entered according to Act of Congress, in the year 1876,
In the Office of the Librarian of Congress at
AN ESSAY READ BEFORE THE
CIVIL ENGINEERS' CLUB OF THE NORTHWEST,
AT CHICAGO, FEB. 1