wind happen to blow favourably when they are passing through this lake, they haul up their sails until they arrive at the Cascades, which are about thirty miles from Montreal. [Illustration: _Working a Canoe up a Rapid._] At the Cascades a short canal has been cut, and locks formed by the government, through which the vessels pass, till they attain the head of these rapids, after which they proceed without departing from the river till they arrive at the Cedars, where, by other locks, they ascend the most difficult part of the rapids. The current between the Cascades and the Cedars is so very impetuous, that the boatmen are obliged to have recourse to their setting-poles, which they fix in the bed of the river, and thus propel their boats with considerable celerity. These exertions, though fatiguing in the extreme, they are often obliged to continue for several hours without intermission, and not unfrequently even their best endeavours in this may prove abortive. When this is the case, they make a rope fast to the bow of the boat; and leaving only the helmsman on board, they plunge into the water and tow her by main strength up the rapids. This is the manner in which they perform the arduous passage, which, though only 120 miles, they seldom accomplish in less than ten days. How the men who are employed in this difficult navigation exist without ruining their constitutions is a mystery which I am utterly unable to explain. They are compelled, almost every hour, when actually melting with heat and fainting with fatigue, to jump into the water, frequently up to their arm-pits, and to remain in it towing their boats until they are completely chilled. They then have recourse to the aid of ardent spirits, of which on all occasions they freely partake, and, in a few minutes, are once more bathed in perspiration. The principal rapids between Montreal and Prescott are the _Cedars_ and the _Cascades_ already mentioned, the _Coteau du Lac_ and the _Long Sault_, the latter of which are about nine miles in length; and though they are seldom ascended in less than a day, boats have been known to descend through their whole length in fifteen minutes.