* * * * * DETROIT. When the intolerable heat of the day has subsided, I sometimes take a languid stroll through the streets of the city, not unamused, not altogether unobserving, though unable to profit much by what I see and hear. There are many new houses building, and many new streets laid out. In the principal street, called the Jefferson Avenue, there are rows of large and handsome brick houses; the others are generally of wood, painted white, with bright green doors and windows. The footway in many of the streets is, like that of Toronto, of planks, which for my own part I like better than the burning brick or stone _pavé_. The crowd of emigrants constantly pouring through this little city on their way to the back settlements of the west, and the number of steamers, brigs, and schooners always passing up and down the lakes, occasion a perpetual bustle, variety, and animation on the shores and in the streets. Forty-two steamers touch at the port. In one of the Detroit papers (there are five or six published here either daily or weekly) I found a long column, headed Marine Intelligence, giving an account of the arrival and departure of the shipping. Last year the profits of the steam-boats averaged seventy or eighty per cent., one with another: this year it is supposed that many will lose. There are several boats which ply regularly between Detroit and some of the new-born cities on the south shore of Lake Erie--Sandusky, Cleveland, Port Clinton, Monroe, &c. The navigation of the Detroit river is generally open from the beginning of April to the end of November. In the depth of winter they pass and repass from the British to the American shore on the ice. There are some excellent shops in the town, a theatre, and a great number of taverns and gaming-houses:--also a great number of booksellers' shops; and I read in the papers long lists of books, newly arrived and unpacked, which the public are invited to inspect.