contour interval of 20 feet, was completed, and drafting of unfinished sheets progressed as follows: Cooperstown, 5 per cent; Loon Lake, 50 per cent; Potsdam, 5 per cent, and Port Jervis, 10 per cent, all same scale and contour interval.

New Jersey. The drafting of the resurveyed Pennsylvania portion and of the revised New Jersey portion of the Lambertville (New Jersey-Pennsylvania) sheet was completed, for engraving on the scale of 1:62,500, with a contour interval of 20 feet.

North Carolina.-The drafting of the Charlotte (North CarolinaSouth Carolina) sheet, for engraving on the scale of 1:62,500, with a contour interval of 20 feet, was completed; also of the resurvey of the Cowee (North Carolina-South Carolina) and the Saluda (North Carolina-South Carolina) sheets, scale 1:125,000, contour interval 100 feet. In addition, about 90 per cent of the Beckford, 60 per cent of the Four Oaks, and 2 per cent of the Salemburg sheets were finished, scale 1:62,500, contour interval 10 feet.

North Dakota.-The drafting of the Bismarck sheet, for engraving on the scale of 1:125,000, with a contour interval of 50 feet, was completed.

Ohio. The drafting of the Andover, Arlington, Blanchester, Bluffton, Bristolville, Brookville, Garrettsville, Greenville, Jefferson, Keno (Ohio-West Virginia), Kinsman (Ohio-Pennsylvania), London, South Charleston, Upper Sandusky, West Manchester, and Wilkesville sheets, for engraving on the scale of 1:62,500, with contour interval of 10 or 20 feet, was completed. The Mentor sheet was resketched for engraving on the scale of 1:62,500, with a contour interval of 20 feet. Thirty per cent of the drafting of the unfinished Athalia, Bidwell, Chagrin Falls, Chillicothe, Columbus Grove, Middletown, New London, Ravenna, St. Henry, Warren, Waverly, West Salem, and Youngstown sheets was completed; scale 1:62,500, contour interval 10 or 20 feet.

Pennsylvania. The drafting of the Claysville, Millerstown, New Cumberland, and Neshannock sheets, for engraving on the scale of 1: 62,500, with a contour interval of 20 feet, was completed; also drafting of unfinished sheets as follows: 55 per cent of the Clarion, 30 per cent of each of the three sheets Middletown, New Holland, and Sewickley, and 25 per cent of the Warren, all on the scale of 1:62,500, with a contour interval of 20 feet.

South Carolina.-The drafting of the Sharon sheet, for engraving on scale of 1:62,500, with a contour interval of 20 feet, was completed. Virginia. The drafting of the Yorktown sheet, for engraving on the scale of 1:62,500, with a contour interval of 10 feet, was completed; also about 20 per cent of the office drafting of the Natural Bridge sheet, scale 1:62.500, contour interval 20 feet.

West Virginia.-The drafting on the Arnoldsburg, Belington, Kingwood, Ripley, and Spencer sheets, for engraving on the scale of 1:62,500, contour interval of 20 feet, was completed; also drafting of unfinished sheets as follows: Glenwood, 25 per cent; Point Pleasant and Ravenswood, 30 per cent; Thornton, 80 per cent.

Wisconsin. The drafting of the Sun Prairie sheet, for engraving on the scale of 1:62,500, with a contour interval of 20 feet, was completed; also drafting of unfinished sheets as follows: Cross Plains and Mazomanie, 5 per cent; Sparta, 20 per cent; all on the above scale and with the same contour interval.

WESTERN DIVISION.

FIELD WORK.

SUMMARY.

Under the combined allotments for topography and forestry topographic work was done during the year in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oklahoma, Oregon, South Dakota, Utah, Washington, and Wyoming. This resulted in the completion of 21 quadrangles, 5 special maps, and 2 large reconnaissance maps, and in the partial survey of 24 quadrangles. The total new area surveyed was 21,745 square miles, of which 2,674 square miles were for publication on the scale of 1:62,500; 8,831 square miles were for publication on the scale of 1:125,000; and 10,240 square miles were for publication on the scale of 1:250,000. In addition, 1,016 square miles were resurveyed, of which 457 square miles were for publication on the scale of 1:125,000; 204 square miles were for pub lication on the scale of 1:62,500; 234 square miles were for publication on the scale of 1:48,000, and 121 square miles were for publication on the scale of 1:24,000. In connection with this work 4.717 miles of spirit levels were run and 1,290 permanent bench marks were established. Forest-reserve boundary surveys were carried on in California and Utah—in the Sierra, Stanislaus, and Santa Barbara reserves of California, and in the Logan and Payson reserves of Utah, the Payson boundary being completed. A total of 327 miles of boundary were run, 12 miles were retraced, and 15 miles of supplemental lines

were run.

Topographic surveys in western division from May 1, 1905, to April 30, 1906.

a 234 square miles for publication on scale of 1:48,000. 65 square miles Mitchell Butte sheet in Idaho and 100 square miles in Oregon mapped by Reclamation Service for publication on scale of 1:125,000; also 75 square miles in Arizona for publication on scale of 1:62,500.

c45 square miles resurvey for publication on scale of 1:24,000.

d3,008 square miles in California and 7,232 square miles in Nevada for publication on scale of 1:250,000, and 54 square miles resurvey in Nevada for publication on scale of 1:24,000. e 22 square miles resurvey for publication on scale of 1:24,000.

GENERAL TOPOGRAPHIC WORK, BY STATES.

Arizona.-One party was engaged in the completion of the survey of the Sacaton quadrangle, in Pinal and Maricopa counties. The area surveyed was 45 square miles, for publication on the scale of 1:62,500, with a contour interval of 50 feet. In addition, 75 square miles of this quadrangle were previously mapped by the Reclamation Service.

California. Part of the topographic work in California was carried on under a renewal of the agreement of previous years between the Director of the United States Geological Survey and the State board of examiners, the amount allotted by each being $15,000.

The cooperative work was principally in the Sacramento Valley, where the Woodland, Davisville, Dunnigan, and Colusa quadrangles, in Yolo, Sacramento, Sutter, and Colusa counties, were completed. These quadrangles comprise an area, mapped this year, of 788 square miles, and in connection with the survey of the Davisville quadrangle 46 miles of levels were run and 9 permanent bench marks established. In addition, four quadrangles, the Rumsey, Capay, Grimes, and Knights Landing, were partially surveyed, the area covered being 164 square miles, in Colusa, Sutter, and Yolo counties. In connection with the survey of the Knights Landing quadrangle 10 miles of levels were run and 3 permanent bench marks established. In this locality, for the control of future sketching, 106 miles of levels were run and 23 permanent bench marks established; 40 miles of check levels also were run. All of the Sacramento Valley work was mapped