It is believed by many persons that the waters of Lake Ontario not only rise and fall periodically every seventh year, but that they are likewise influenced by a tide, which ebbs and flows frequently in the course of twenty-four hours. On board the vessel in which I crossed the lake there were several gentlemen of the country, who confidently assured me, that a regular tide was observable at the Bay of Canti; that in order to satisfy themselves on the subject, they had stood for several hours together, on more than one occasion, at a mill at the head of the bay, and that they had observed the waters to ebb and flow regularly every four hours, rising to the height of fourteen inches. There can be no doubt, however, but that the frequent ebbing and flowing of the water at this place must be caused by the wind; for no such regular fluctuation is observable at Niagara, at Kingston, or on the open shores of the lake; and owing to the formation of the Bay of Canti, the height of the water must necessarily vary there with, every slight change of the wind. The Bay of Canti is a long crooked inlet, that grows narrower at the upper end, like a funnel; not only, therefore, a change of wind up or down the bay would make a difference in the height of the water at the uppermost extremity of it; but owing to the waters being concentrated there at one point, they would be seen to rise or fall, if impelled even in the same direction, whether up or down the bay, more or less forcibly at one time of the day than at another. Now it is very seldom that the wind, at any part of the day or night, would be found to blow precisely with the same force, for a given space of two hours, that it had blown for the preceding space of two hours; an appearance like a tide must therefore be seen almost constantly at the head of this bay whenever there was a breeze. I could not learn that the fluctuation had ever been observed during a perfect calm: were the waters, however, influenced by a regular tide, during a calm the tide would be most readily seen. To return to the voyage. A few hours after we quitted Kingston, on the 7th of September, the wind died away, and during the whole night the vessel made but little way; early on the morning of the 8th, however, a fresh breeze sprang up, and before noon we lost sight of the land. Our voyage now differed in no wise from one across the ocean; the vessel was steered by the compass, the log regularly heaved, the way marked down in the log book, and an exact account kept of the procedures on board. We continued sailing, out of sight of land, until the evening of the 9th, when we had a view of the blue hills in the neighbourhood of Toronto, on the northern side of the lake, but they soon disappeared. Except at this place, the shores of the lake are flat and sandy, owing to which circumstance it is, that in traversing the lake you are generally carried out of sight of land in a very few hours. [Sidenote: NIAGARA.]