and approved by the Secretary of War October 11, 1881, as appears in annual report of this office for 1882, page 1989.

There being nothing in print to show when and in what manner the changes were authorized, the correspondence relating thereto is inserted in the appendix of this report for convenience of reference, and to complete the printed record.

(See Appendix U U 5.)

6. In consequence of provisions of section 2 of the river and harbor act of July 5, 1884, which require the Secretary of War to report to Congress whether any bridges, causeways, or structures, erected or being erected, interfere with free and safe navigation, and if so, to report the best mode of altering or constructing them, with the view of supplying the information desired, officers under direction of this office were instructed to submit reports covering all facts necessary to enable the Secretary of War to comply with the terms of the act. A communication containing reports received in compliance with these instructions, and comprising all instances reported to this office up to date of interference with free and safe navigation by bridges and other structures, was transmitted to the Senate December 18, 1885, and printed as Senate Ex. Doc. No. 12, Forty-ninth Congress, first session.

PRINTING AND DISTRIBUTION OF CHARTS OF THE NORTHERN AND NORTHWESTERN LAKES.

Under the supervision of this office the following engraved copperplates of charts of the Northern and Northwestern lakes bave been electrotyped:

Lake Michigan Coast Chart No. 4, Niagara Falls.

The following charts have been photolithographed and an edition printed:

Buffalo Harbor, scale bo

Erie Harbor, scale

Saint Lawrence River Detail Sheets Nos. 1, 2, 3, 4, 5, and 6, scale roboo

During the year 4,537 charts were issued under the supervision of Lieut. Col. O. M. Poe, Corps of Engineers, 1,212 of which were sold at 30 cents each, and the amount, $363.60, turned into the Treasury.

Amount appropriated by act approved March 3, 1885..
June 30, 1886, amount expended during the fiscal year..
Amount available for the fiscal year 1886–87..

$3,000 00 2,544 04

2,000 00

Amount required for survey of Northern and Northwestern lakes for fiscal year ending June 30, 1888, namely, for printing and issuing charts for the use of navigators, and electrotyping copper-plates for chart-printing. 2, 000 00

MILITARY AND GEOGRAPHICAL MAPS.

The following maps have been photolithographed and an edition printed :

Map of the Department of Dakota, scale 800000, by Lieut. John Biddle, Corps of Engineers, 1886.

Preliminary sketches of sheets 3, 4, 7, 8, and 12 of survey of Western Texas, scale 1 inch to 4 miles, by Maj. W. R. Livermore, Corps of Engineers, 1884.

Map of a portion of Southeastern Arizona, scale 8 miles to 1 inch, by Lieut. E. J. Spencer, Corps of Engineers, 1886.

Map of part of Turkey in Europe, in seven sheets.

Map of the Arkansas River from Little Rock to its mouth, in 22 sheets, scale 1 inch to 2,400 feet, made under the direction of Capt. H. S. Taber, Corps of Engineers, 1856,

Map of the United States and Texas boundary line, determined and surveyed in 1857-58-59-'60, by J. H. Clark, United States Commissioner; scale, Too000.

The compilation of a map of Central America on a scale of T20000 has been commenced and considerable progress made.

The compilation of a map of the United States on a scale of goooooo has been commenced.

Amount appropriated by act approved March 5, 1885..
June 30, 1886, amount expended during the fiscal year

RECONNAISSANCES AND EXPLORATIONS.

$5,000 00 910 55

The following officers of the Corps of Engineers have been on duty at the headquarters of the Army and at the divisions and departments, engaged in preparing such maps and making such surveys as were required by their respective commanding officers:

Capt. James F. Gregory, lieutenant-colonel and aid-de-camp to the Lieutenant-General at headquarters of the Army, to October 10, 1885. Maj. Thomas H. Handbury, at headquarters Division of the Missouri. Maj. W. R. Livermore, at headquarters Department of Texas, to March 15, 1886.

Capt. D. C. Kingman, at headquarters Department of the Platte. Lieut. Eugene Griffin, at headquarters Division of the Atlantic and Department of the East, from September 7, 1885, to May 29, 1886.

Lieut. Thomas L. Casey, at headquarters Division of the Pacific and Department of California.

Lieut. Theodore A. Bingham, at headquarters Department of Arizona, to August 13, 1885; Lieut. E. J. Spencer, from February 1, 1886, to

date.

Lieut. John Biddle, at headquarters Department of Dakota.

Lieut. Edward Burr, at headquarters Department of the Columbia, from October 22, 1885.

Maj. T. H. Handbury, engineer officer headquarters Military Division of the Missouri, reports that his work has consisted in collecting geographical information for the improvement of existing maps, and in making copies of maps of military posts, scouts, reconnaissances, and of military and Indian reservations for use at division headquarters.

Capt. D. C. Kingman, engineer officer, headquarters Department of the Platte, reports that he has surveyed and plotted a tract of 80 acres of land lying north and northwest of Fort Omaha, with a view to its purchase by the Government for a rifle range, surveyed and re-established the southern boundary of the military reservation at Fort D. A. Russell; also surveyed and set out a rifle range at Bellevue, Nebr. A map of the department is being compiled under his direction.

Captain Kingman has also been engaged in the construction of roads and bridges in the Yellowstone National Park, in accordance with the provisions of an act of Congress approved March 3, 1883.

Lieut. T. L. Casey, engineer officer, Division of the Pacific and Department of California, reports that operations have been carried on as follows:

Triangulation of proposed rifle ranges for skirmish firing on the Presidio Reservation, photographing military implements, copying, enlarging, and reducing maps and drawings by photography, and the preparation of a new map of the Department of California. In addition to his duties as engineer officer of the division and department he has performed the duties of inspector of rifle practice for the Department of California, and by order of the President, dated War Department, Adjutant-General's Office, Washington, September 24, 1885, was

detailed as one of the commission to run and mark the boundary line between a portion of the Indian Territory and the State of Texas, in connection with a similar commission to be appointed by the State of Texas.

Lieut. John Biddle, engineer officer of Department of Dakota, reports the survey of the boundary line of Fort Buford Military Reservation by Lieut. J. E. Wilson, Fifth Infantry, also an examination and report by the same officer of the irrigating ditches at the Indian Agencies at Poplar Creek and Wolf Point, Montana Territory, also a reconnaissance made by himself from Fort Shaw, Montana, to the Jocko Indian Agency and return, to ascertain the practicability of the mountain passes in that vicinity. A new map of the Department of Dakota has been completed, photolithographed, and distributed throughout the department. New information is being collected of the country surrounding the various military posts in the department.

Lieut. Edward Burr, engineer officer Department of the Columbia, entered upon his duties October 22, 1885, relieving acting engineer officer Capt. J. W. MacMurray, First Artillery, and reports that operations have been carried on as follows:

A boat reconnaissance of Pend d'Oreille River from Sand Point, Idaho Territory, to the mouth of Sullivan's Gulch, Washington Territory, was made during the month of August, 1885, by Lieut. W. R. Abercrombie, Second Infantry. Lines of levels were run upon the Vancouver Military Reservation in connection with the sewerage system, contour map, and for road and building purposes. A survey of the old roads in the timber reserve was made, and new roads located in the post reserve. The work of revision of the progress sheets of the department has been continued. Plans were prepared for new and proposed buildings for the Quartermaster's Department. New plans of occupied posts in the department, on a small scale, are being prepared for publication. A large number of drawings, tracings, and blue prints have been made. for the use of the Quartermaster's Department, Chief Ordnance Officer, and other staff officers, during the year.

Lient. T. A. Bingham, engineer officer department of Arizona, from July 1, 1885, to August 13, 1885. Capt. C. W. Williams, assistant quartermaster, acting engineer officer from August 13, 1885, to November 6, 1885. Capt. J. F. Weston, commissary of subsistence, acting engi neer officer from November 6, 1885, to February 1, 1886. Lieut. E. J. Spencer, engineer officer, February 1, 1886. During portions of the months of February and April, and the month of March, Lieutenant Spencer was engaged in a compass and odometer survey of Cochise and the eastern portion of Pima counties in Arizona. This work was plotted and a map prepared on a scale of 4 miles to 1 inch.

ESTIMATE FOR AMOUNT REQUIRED FOR SURVEYS AND RECONNAISSANCES IN MILITARY DIVISIONS AND DE

PARTMENTS.

For military surveys and reconnaissances and surveys of military res ervations by the engineer officers attached to the several headquarters of military divisions and departments, being an average of $5,000 for each of eight military divisions and departments west of the Mississippi River, $40,000; for publication of maps for use of the War Department, $10,000; total, $50,000.

OFFICE OF THE CHIEF OF ENGINEERS.

In the labors of the office the Chief of Engineers was assisted on the 30th of June by the following officers in charge of the several divisions: Lieut. Col. John M. Wilson, colonel, U. S. A.

FIRST DIVISION.-Fortifications and Surveys relating thereto-Armament of Fortifications-Sites for Engineer Defenses-Boards of Engineers for Defenses.

SECOND DIVISION.-Battalion of Engineers-Engineer School of Application and Engineer Depot and Post-Professional Papers and Information-Personnel-Orders-Military Reservations-Land Files. Col. John G. Parke, brevet major-general, U. S. A.

THIRD DIVISION.-Improvement of Rivers and Harbors and Surveys relating thereto-Bridging Navigable Waters of the United States-Public Buildings and Grounds and Washington Aqueduct.

Capt. Henry M. Adams.

FOURTH DIVISION.-Accounts for Disbursements-Contracts-Returne of Engineer Property and Instruments-Applications for RemittancesAppropriations and Estimates-Blank Forms.

FIFTH DIVISION.-Survey of the Lakes-Explorations and Surveys— Reconnaissances-Maps-Instruments-Claims.

Very respectfully, your obedient servant,

Hon. WILLIAM C. ENDICOTT,

Secretary of War.

J. C. DUANE,

Brig. Gen., Chief of Engineers.

STATEMENT SHOWING THE RANK AND THE DUTIES OF OFFICERS OF THE CORPS OF ENGINEERS DURING THE FISCAL YEAR ENDING JUNE 30 1886.

RANK AND NAME.

BRIGADIER-GENERAL

AND CHIEF OF
ENGINEERS.

DUTIES.

John Newton...........

Bvt. Major-General.

COLONELS.

Charles S. Stewart..

Charles E. Blunt....

James C. Duane..

Bvt. Brig. General.

In command of the Corps of Engineers and in charge of the Engineer Department. Charged with the supervision of such matters connected with construction of jetties and other works at South Pass, Mississippi River, as require the action of the Secretary of War. In charge of the removal of obstructions in the East River and Hell Gate, N. Y. Member of Joint Commission to supervise the construction of the Washington National Monument. Directed by the President to co-operate with the authorities of the State of New York in examining and deciding upon exterior pier and bulkhead lines on Hudson River from State dam at Troy to the city of Hudson. Member of the Lighthouse Board. Member of Board of Officers and Civilians to examine and report at what ports fortifications or other defenses are most urgently required, &c.

In charge of the construction of Fort Winfield Scott, and batteries at Fort Mason, and fortifications at Angel Island in San Francisco Bay, and at San Diego, Cal. In charge of the improvement of the harbor at San Diego, Cal. Senior member of Board of Engineers for the Pacific Coast.

In charge of Forts Knox, Popham, Gorges, Scammel, McClary, and batteries at Portland Head and Gerrish's Island, Me., and Fort Constitution and battery at Jerry's Point, N. H., and of construction of Fort Preble, Me. In charge of the improvement of the harbors at Bangor, Belfast, Rockland, and Portland, Me., and Portsmouth, N. H. In charge of the improvement of the rivers Penobscot and Kennebunk, Me., and Cocheco, N. H., Saco River Breakwater, Lubec Channel, and Moose-a-bec Bar, Me. In charge of preliminary examination and of survey of Saco River. To take steps towards the removal of wreck of schooner Waldemar in Belfast Harbor, Me. Supervising Engineer over districts embracing works in charge of Majors Smith, Overman, and M. B. Adams, and Captain Maguire.

Member and President of the Board of Engineers. Senior member of Board of Visitors for Engineer School of Application at Willets Point, N. Y. Engineer 3d Lighthouse District. Member of Board of Engineer Officers for the examination of certain officers of the Corps with view to their promotion.