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Vaudreuil, and is reserved for public purposes; 

 at the entrance to the canal, from the lake St. 

 Louis, is a guard-house, where a small party of 

 military is always stationed. At a place near 

 Longeuil's mill the batteaux going up the St. 

 Lawrence are unloaded, and their freights trans- 

 ported in carts to the village, in order that they 

 may be towed up light through the Grande 

 Batture or Rapide du Coteau des Cedres. On 

 the opposite shore is the Rapid de Bouleau, 

 deeper, but not less difficult to pass; the com- 

 bined effects of these two make this the most 

 intricate and hazardous place that is met with 

 between Montreal and Lake Ontario. In a 

 military view it is one of the most important 

 spots that can be chosen, if it should ever un- 

 fortunately be again necessary to adopt defensive 

 measures, as works thrown up on the project- 

 ing points of each side would completely frus- 

 trate any attempt to bring down by water a 

 force sufficient to undertake offensive opera- 

 tions against Montreal. At Coteau du Lac, 

 just above river Delisle, boats again enter locks 

 to avoid a very strong rapid, between Prison 

 Island and the point abreast of it, where a duty 

 is collected upon wines, spirits, and many other 

 articles that are carried by them into Upper 

 Canada. This place has been always esteemed 

 a military post of some consequence; works are 



