Browsing named entities in H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia.. You can also browse the collection for Ogdensburg (New York, United States) or search for Ogdensburg (New York, United States) in all documents.

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H. Wager Halleck , A. M. , Lieut. of Engineers, U. S. Army ., Elements of Military Art and Science; or, Course of Instruction in Strategy, Fortification, Tactis of Battles &c., Embracing the Duties of Staff, Infantry, Cavalry, Artillery and Engineers. Adapted to the Use of Volunteers and Militia., Chapter 8: our northern frontier defences.—Brief description of the fortifications on the frontier, and an analysis of our northern campaigns. (search)
Let us now turn to the system of works projected for the defence of this line. The first works are at the Falls of St. Mary, on the western extremity of the line. The second works are at Mackinaw. The third works are at the foot of Lake Huron. The fourth works are near Detroit. The fifth works are near Buffalo. The sixth works are at the mouth of the Niagara river The seventh works are at Oswego. The eighth works are at Sacketts Harbor. The ninth works are below Ogdensburg. The tenth works are at Rouse's Point. The eleventh works are near the head-waters of the Kennebec or the Penobscot. The twelfth works are at Calais, on the St. Croix. All these works are small, and simple in their character, well calculated to assist the operations of armed forces in the field, but incapable of resisting a protracted siege. They are entirely different in their character from those on the coast, the latter being intended principally for the use of our citizen-