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 Manchester (New York, United States) or search for Manchester (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)
the very threshold of its introduction into the interior seas; or shall we build opposition steam-navies at Pittsburg and Memphis, some two thousand miles distant, and then expend some forty or fifty millions The construction of the Illinois ship-canal, for vessels of eight and a half feet draught, is estimated at fifteen millions; to give the same draught to the Mississippi and lower Illinois, would require at least ten millions more; a ship canal of the corresponding draught around Niagara Falls, will cost, say, ten millions; the navy yard at Memphis, with docks, storehouses, &c., will cost about two millions, and steamers sent thence to the lakes will cost about fifty thousand dollars per gun. On the other hand, the military defences which it is deemed necessary to erect in time of peace for the security of the Champlain frontier, will cost only about two thousand dollars per gun; the whole expenditure not exceeding, at most, two millions of dollars! It is not to be denied t