I was last summer at the foot of Lake Superior, and neither saw nor heard of any British fort or barrack on the St. Marys River, the outlet of that lake.

Between Lakes Huron and Erie the British have three sets of barracks—­one at Windsor, opposite to Detroit; one at Sandwich, a little lower down; and the third at Maiden, 18 miles from the first—­all built of sawed logs, strengthened by blockhouses, loopholes, etc.  Maiden has long been a military post, with slight defenses.  These have been recently strengthened.  The works at Sandwich and Windsor have also, I think, been erected within the last six or eight months.

Near the mouth of the Niagara the British have two small forts—­George and Mississauga; both existed during the last war.  The latter may be termed a permanent work.  Slight barracks have been erected within the last two years on the same side near the Falls and at Chippewa, with breastworks at the latter place, but nothing, I believe, above the works first named on the Niagara which can be termed a fort.

Since the commencement of recent troubles in the Canadas and (consequent thereupon) within our limits Fort William Henry, at Kingston, and Fort Wellington, opposite to Ogdensburg (old works), have both been strengthened within themselves, besides the addition of dependencies.  These forts may be called permanent.

On the St. Lawrence below Prescott, and confronting our territory, I know of no other military post.  Twelve miles above, at Brockville, there may be temporary barracks and breastworks.  I know that of late Brockville has been a military station.

In the system of defenses on the approaches to Montreal the Isle aux Noix, a few miles below our line, and in the outlet of Lake Champlain, stands at the head.  This island contains within itself a system of permanent works of great strength.  On them the British Government has from time to time since the peace of 1815 expended much skill and labor.

Odletown, near our line, on the western side of Lake Champlain, has been a station for a body of Canadian militia for two years, to guard the neighborhood from refugee incendiaries from our side.  I think that barracks have been erected there for the accommodation of those troops, and also at a station, with the like object, near Alburgh, in Vermont.

It is believed that there are no important British forts or extensive British barracks on our borders from Vermont to Maine.

In respect to such structures on the disputed territory, Governor Fairfield’s published letters contain fuller information than has reached me through any other channel.  I have heard of no new military preparations by the British authorities on the St. Croix or Passamaquoddy Bay.

Among such preparations, perhaps I ought not to omit the fact that Great Britain, besides numerous corps of well-organized and well-instructed militia, has at this time within her North American Provinces more than 20,000 of her best regular troops.  The whole of those forces might be brought to the verge of our territory in a few days.  Two-thirds of that regular force has arrived out since the spring of 1838.