The following notices of the Rideau Canal, in which is made clear, the exalted worth of the superintendant of that stupendous work, Colonel By, of the Royal Engineers: who for its grandeur of design - its indefatigable prosecution - and rapid, and successful completion, amid, not only, natural difficulties, most untoward, and unparalleled, but also, artificial obstructions, caused by intrigues of envious men, has merited, and enjoys, the gratitude of the present, and secured for himself a renown, imperishable in future ages, are respectfully dedicated to the public, by its obedient humble servant, the author