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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

4200 thumbnail picture
Monterey Harbor with view of Point Pinos lighthouse, 1852.
4201 thumbnail picture
"New type" chart, San Diego to Santa Cruz Island, California, 1936. Chart incorporated bathymetric contours to show bottom detail as navigation aid
4202 thumbnail picture
Chart of Agusan River Entrance and inset of Nasipit Harbor, Philippine Islands.
4203 thumbnail picture
Chart of Agusan River Entrance, Philippine Islands. Chart has contours drawn by Paul A. Smith showing head of submarine canyon
4204 thumbnail picture
Chart of northwest coast of United States, Gray's Harbor to Admiralty Inlet. From reconnaissance survey of Lt. Cmdg. James Alden, 1853.
4205 thumbnail picture
Detail of views on 1853 chart of northwest coast.
4206 thumbnail picture
Tape contact at middle of comparator. Basically calibrating steel tapes - first use of steel measuring tapes by C&GS. Nine bases being measured on 98th Meridian by base line party under A.L. Baldwin . Fig. No. 15, Appendix No. 3, Report of Superintendent ... 1901, p. 260. Work done at night to reduce expansion and contraction of steel tape
1901
4207 thumbnail picture
Tape contact at end of comparator. Basically calibrating steel tapes - first use of steel measuring tapes by C&GS. Nine bases being measured on 98th Meridian by base line party under A.L. Baldwin . Fig. No. 14, Appendix No. 3, Report of Superintendent ... 1901, p. 260
1901
4208 thumbnail picture
Cut-off, i.e. flashlight, in use at night on comparator. Night-time operations in comparing lengths of steel tapes. Fig. No. 13, Appendix No. 3, Report of Superintendent ... 1901, p. 258
1901
4209 thumbnail picture
After making contact, the forward end of tape is moved ahead. Note lantern and flashlight - these operations were conducted at night. Relatively constant night temperatures minimized expansion of tape. Fig. No. 12, Appendix No. 3, Report of Superintendent ... 1901, p. 258
1901
4210 thumbnail picture
Making contact at rear end of tape. Man standing is maintaining pre-set constant tension on line. Man kneeling is reading tape. Fig. No. 11, Appendix No. 3, Report of Superintendent ... 1901, p. 258
1901
4211 thumbnail picture
Aligning iced-bar base apparatus with striding level. Assuring iced-bar apparatus is horizontal. Fig. No. 5, Appendix No. 3, Report of Superintendent ... 1901, p. 244.
1901
4212 thumbnail picture
Stone marking end of comparator, a 100-meter very stable short base line. Comparator was used to calibrate and intercompare various measuring instruments . This comparator was at Shelton, Nebraska, near Station Shelton East Base. Fig. No. 2, Appendix No. 3, Report of Superintendent ... 1901, p. 244
Nebraska, Shelton 1901
4213 thumbnail picture
Plane table alidade. Plate IV, Fig. No. 10, Appendix No. 8, Report of Superintendent ... 1894, p. 276
1894
4214 thumbnail picture
Magnetometer and altazimuth instrument. Plate III, Fig. No. 9, Appendix No. 8, Report of Superintendent ... 1894, p. 276
1894
4215 thumbnail picture
Aligning support nails for steel tapes. Fig. No. 10, Appendix No. 3, Report of Superintendent ... 1901, p. 258
1901
4216 thumbnail picture
Duplex measures, carrying the rear bar ahead. After making contact, the rear bar was moved to the forward position. It was then realigned horizontally, vertically, and for azimuth on the base line . Fig. No. 9, Appendix No. 3, Report of Superintendent ... 1901, p. 244
1901
4217 thumbnail picture
Duplex measures, ready to launch the rear bar. After making contact, the rear bar was moved to the forward position. It was then realigned horizontally, vertically, and for azimuth on the base line . Fig. No. 8, Appendix No. 3, Report of Superintendent ... 1901, p. 244
1901
4218 thumbnail picture
Duplex measures, making the final contact. "Contact" meant bringing the two aligned bars together so the ends were touching . Fig. No. 7, Appendix No. 3, Report of Superintendent ... 1901, p. 244.
1901
4219 thumbnail picture
Using Eimbeck duplex base-line measurement apparatus. Aligning duplex bar horizontally and vertically. Fig. No. 6, Appendix No. 3, Report of Superintendent ... 1901, p. 244.
1901
4220 thumbnail picture
Theodolite magnetometer. Fig. No. 29, Report of Superintendent ... 1865
1865
4221 thumbnail picture
Portable transit. Fig. No. 29, Report of Superintendent ... 1866
1866
4222 thumbnail picture
Zenith telescope. Fig. No. 28, Report of Superintendent ... 1866
1866
4223 thumbnail picture
Twelve inch repeating circle (bottom) and heliotrope (top). Fig. No. 27, Report of Superintendent ... 1866
1866
4224 thumbnail picture
Thirty inch theodolite. Fig. No. 26, Report of Superintendent ... 1866
1866
4225 thumbnail picture
Transferring the measurement to the ground work. Completing the Salt Lake City Base. Distance measurement with Eimbeck base bar apparatus. Figure No. 9, Appendix No. 12. Part II, Report of the Superintendent ... 1897, p. 774
Utah, Salt Lake City 1897
4226 thumbnail picture
Crossing a railway embankment on the Salt Lake City Base. Using the Eimbeck base bar apparatus. Figure No. 8, Appendix No. 12. Part II, Report of the Superintendent ... 1897, p. 774
Utah, Salt Lake City 1897
4227 thumbnail picture
Beginning the measurement of the Salt Lake City Base. Perhaps last use of Eimbeck base bar apparatus. Figure No. 7, Appendix No. 12. Part II, Report of the Superintendent ... 1897, p. 774
Utah, Salt Lake City 1897
4228 thumbnail picture
Duplex bar No. 15 on its trestles. Figure No. 5, Appendix No. 11. Part II, Report of the Superintendent ... 1897, p. 483.
1897
4229 thumbnail picture
Duplex bars of Eimbeck base measuring instrument in contact. Figure No. 4, Appendix No. 11. Part II, Report of the Superintendent ... 1897, p. 483.
1897
4230 thumbnail picture
30 centimeter theodolite. Plate I, Fig. No. 7, Appendix No. 8, Report of Superintendent ... 1894, p. 276
1894
4231 thumbnail picture
Meridian and equal altitude instrument for astronomic observations. Fig. No. 28, Report of Superintendent ... 1867
1867
4232 thumbnail picture
Sorenson's engraving pantograph. Fig. No. 27, Report of Superintendent ... 1867
1867
4233 thumbnail picture
20 centimeter theodolite. Plate II, Fig. No. 8, Appendix No. 8, Report of Superintendent ... 1894, p. 276
1894
4234 thumbnail picture
Tidal indicator erected at Reedy Island on the Delaware River, Delaware. Figure No. 5, Appendix No. 9. Part II, Report of the Superintendent ... 1897, p. 483. This and two other indicators at New York and San Francisco built by C&GS. Face is thirty feet in diameter
Delaware, Reedy Island, Delaware River 1897
4235 thumbnail picture
Stierle gauge as modified by the Coast and Geodetic Survey. Figure No. 4, Appendix No. 9. Part II, Report of the Superintendent ... 1897, p. 482
1897
4236 thumbnail picture
Stierle gauge as modified by the Coast and Geodetic Survey. Figure No. 3, Appendix No. 9. Part II, Report of the Superintendent ... 1897, p. 482
1897
4237 thumbnail picture
Avery's one-roller tide gauge. Figure 2, Appendix No. 9. Part II, Report of the Superintendent ... 1897, p. 481
1897
4238 thumbnail picture
Saxton self-registering tide gauge - model of 1853. Figure 1, Appendix No. 9. Part II, Report of the Superintendent ... 1897, p. 481
1897
4239 thumbnail picture
Clock-face view of modified Stierle tide gauge, model of 1896. Plate No. 5 of Appendix No. 7. Part II, Report of the Superintendent ... 1897, p. 318
1897
4240 thumbnail picture
Modified stierle tide gauge, model of 1896. Plate No. 4 of Appendix No. 7. Part II, Report of the Superintendent ... 1897, p. 318
1897
4241 thumbnail picture
Saxton self-registering tide gauge, model as of 1897. Plate No. 3 of Appendix No. 7. Part II, Report of the Superintendent ... 1897, p. 318
1897
4242 thumbnail picture
Magnetic declination and dip station. Observations at Boundary Marker No. 1. This was at the northernmost point on the Alaska-Canada Boundary. Party of J. T. Watkins - transportation by Coast Guard Cutter Bear
Alaska, Demarcation Point August 15, 1921
4243 thumbnail picture
Magnetic observations by party of J. T. Watkins. Station was about 10 miles west of East Cape, Siberia. Transportation by Coast Guard Cutter Bear
USSR, Near Whalen, Siberia August, 1921
4244 thumbnail picture
Magnetic observations by party of M. L. Cleven.
Alaska, Nome Early summer 1947
4245 thumbnail picture
Magnetic observations by party of M. L. Cleven in east-central Alaskan Arctic.
Alaska, Saganavirktok River Early summer 1947
4246 thumbnail picture
Observing magnetics with transit magnetometer at Station Mir 2. Party off of EXPLORER
Alaska, Amchitka Island, Aleutian Islands June 12, 1949
4247 thumbnail picture
Observing absolute value of horizontal component of the Earth's magnetic field.
Maryland, Cheltenham Observatory 1931
4248 thumbnail picture
Measuring absolute value of declination with a declinometer.
Maryland, Cheltenham Observatory 1931
4249 thumbnail picture
Co-tidal lines of the world.
1916

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Last Updated:
April 30, 2013