engineer operations in the field, for bridges, trains, and equipage, and for tool and siege trains, for the second haft of the current fiscal year, and all of the fiscal year ending June 30, 1863. They are additional estimates to those heretofore transmitted to Congress:
For fortifications on the Northern frontier, including fortifications at Oswego, Niagara, Buffalo, and Detroit$750,000
Fort Montgomery, at outlet of Lake Champlain, New York150,000
Fort Knox, at Narrows of Penobscot river, Maine159,000
Fort on Hog Island Ledge, Portland harbor, Maine150,000
Fort Warren, Boston harbor, Mass75,000
Fort Winthrop and exterior batteries, Boston harbor100,000
Fort at New Bedford Harbor, Mass150,000
Fort Adams, Newport harbor, R. I.50,000
Fort Schuyler, East river, New York25,000
Fort at Willet's Point, opposite Fort Schuyler, New York250,000
Commencement of casemate at battery on Staten Island, New York100,000
New battery at Fort Hamilton, at the Narrows, New York100,