In addition to this, it may be stated that the St Lawrence is generally locked up by ice seven months in the year, during which time produce lies a dead weight on the hands of the owner; that the navigation from New-York to the ocean, is at all times easy, and seldom obstructed by ice, and that the passage from the Balize to New-Orleans is tedious; that perhaps one out of five of the western boatmen who descend the Mississippi, become victims to disease; and that many important articles of western production are injured or destroyed by the climate. New-York is, therefore, placed in a happy medium between the insalubrious heat of the Mississippi, and the severe cold of the St Lawrence. She has also pre-eminent advantages, as to the goodness and extensiveness of her market. All the productions of the soil, and the fabrics of art, can command an adequate price, and foreign commodities can generally be procured at a lower rate. The trade of the Mississippi is already in the hands of her merchants, and although accidental and transient causes may have concurred to give Montreal an ascendency in some points, yet the superiority of New-York is founded in nature, and if improved by the wisdom of government, must always soar above competition. Granting, however, that the rivals of New-York will command a considerable portion of the western trade, yet it must be obvious, from these united considerations, that she will engross more than sufficient to render her the greatest commercial city in the world. The whole line of canal will exhibit boats loaded with flour, pork, beef, pot and pearl ashes, flaxseed, wheat, barley, corn, hemp, wool, flax, iron, lead, copper, salt, gypsum, coal, tar, fur, peltry, ginseng, bees-wax, cheese, butter, lard, staves, lumber, and the other valuable productions of our country; and also, with merchandise from all parts of the world. Great manufacturing establishments will spring up; agriculture will establish its granaries, and commerce its warehouses in all directions. Villages, towns, and cities, will line the banks of the canal, and the shore of the Hudson from Erie to New-York. "The wilderness and the solitary place will become glad, and the desert will rejoice and blossom as the rose."