We embarked on board the good ship Beaver, a large steam-vessel, for the Holland Landing, distant twenty-eight miles--twenty-one of them by the lake, and seven by the river. The vessel stops by the way at several settlements, where half-pay officers generally have pitched their tents; and twice a week she makes the grand tour of the whole lake, at an altitude of upwards of seven hundred and fifty feet above Lake Ontario, and not forty miles from it. This navigation of the Holland river is very well worth seeing, as it is a natural canal flowing through a vast marsh, and very narrow, with most serpentine convolutions, often doubling upon itself.--Conceive the difficulty of steering a large steamboat in such a course; yet it is done every day in summer and autumn, by means of long poles, slackening the steam, backing, &c., though very rarely without running a little way into the soft mud of the swamp. The motion of the paddles has, however, in the course of years, widened the channel and prevented the growth of flags and weeds. There is one place called the Devil's Elbow, a common name in Canada for a difficult river pass, where the sluggish water fairly makes a double, and great care is necessary. Here the enterprising owner and master of the vessel tried to cut a channel; but, after getting a straight course through the mud for two-thirds of the way, he found it too expensive to proceed, but declares that he will persevere. Why does not the Board of Works, which has literally the expenditure of more than a million, take the business in hand, and complete it? One or two hundred pounds would finish the affair. But perhaps it is too trifling, and, like the cut at the Long Point, Lake Erie, to which we shall come presently, is overlooked in the magnitude of greater things.