Measuring & Mapping

Where, how far, and how much? People have invented an astonishing array of devices to answer seemingly simple questions like these. Measuring and mapping objects in the Museum's collections include the instruments of the famous—Thomas Jefferson's thermometer and a pocket compass used by Meriwether Lewis and William Clark on their expedition across the American West. A timing device was part of the pioneering motion studies of Eadweard Muybridge in the late 1800s. Time measurement is represented in clocks from simple sundials to precise chronometers for mapping, surveying, and finding longitude. Everyday objects tell part of the story, too, from tape measures and electrical meters to more than 300 scales to measure food and drink. Maps of many kinds fill out the collections, from railroad surveys to star charts.

Sextant with a silvered scale graduated every 20 minutes from -5° to +175° and read by vernier with tangent screw and magnifier to 30 seconds of arc. The inscriptions read "Lorieux, A. Hurlimann succr à Paris" and "C. & G.S. 307." The U.S.
Description
Sextant with a silvered scale graduated every 20 minutes from -5° to +175° and read by vernier with tangent screw and magnifier to 30 seconds of arc. The inscriptions read "Lorieux, A. Hurlimann succr à Paris" and "C. & G.S. 307." The U.S. Coast & Geodetic Survey acquired this instrument in 1907 and transferred it to the Smithsonian in 1929.
A. Hurlimann was a mathematical instrument maker in Paris who took over Lorieux's shop in the early 1890s. He was succeeded by Ponthus & Therrode a few years later.
Location
Currently not on view
date made
ca 1907
maker
Hurlimann, A.
ID Number
PH.309660
accession number
106954
catalog number
309660
This watch-pattern pedometer was used by Dr. Leonard Stejneger (1851-1943), a Norwegian-born ornithologist and herpetologist who worked for the Smithsonian. It has two scales, the larger reading to 1760 yards and the smaller reading to 50 miles.
Description
This watch-pattern pedometer was used by Dr. Leonard Stejneger (1851-1943), a Norwegian-born ornithologist and herpetologist who worked for the Smithsonian. It has two scales, the larger reading to 1760 yards and the smaller reading to 50 miles. A mark on the back reads “FWR.” The rim is inscribed “ENG. DPT. U.S.A. 1905 #246.”
Ref: Queen & Co., Manual of Engineers’ and Surveyor’s Instruments (Philadelphia, 1898), p. 101
Keuffel & Esser, Catalogue of Drawing Materials, Surveying Instruments, Measuring Tapes (New York, 1921), p. 394.
Location
Currently not on view
date made
around 1900
ID Number
PH.320249
catalog number
320249
accession number
241910
The inscriptions on the face of this barometer read “J.W. Queen & Co. PHILADELPHIA” and U.S.G.S. No 197.” The U.S.
Description
The inscriptions on the face of this barometer read “J.W. Queen & Co. PHILADELPHIA” and U.S.G.S. No 197.” The U.S. Geological Survey was established in 1879.
The pressure scale around the circumference of the face of this barometer reads from 17.5 to 31 inches of mercury; the altitude scale reads from zero to 3,000 feet. Despite the inscription, this instrument was probably made in London. James W. Queen & Co., the Philadelphia firm that sold it, referred to it as a Pocket Mountain Aneroid compensated for temperature, with altitude scale to 3000 feet.
Ref: J. W. Queen & Co., Mathematical and Engineering Instruments and Materials (Philadelphia, [1880]), p. 179.
Location
Currently not on view
date made
late 19th century
ID Number
PH.247926
catalog number
247926
accession number
47736
Phillips-type mercury-in-glass thermometer attached to a white porcelain plate on a wooden board that is designed to be hung horizontally. The plate is marked "MAXIMUM" and "L. CASELLA, Maker to the Admiralty & Ordnance, LONDON" and "12975" and is graduated every 5 degrees F.
Description
Phillips-type mercury-in-glass thermometer attached to a white porcelain plate on a wooden board that is designed to be hung horizontally. The plate is marked "MAXIMUM" and "L. CASELLA, Maker to the Admiralty & Ordnance, LONDON" and "12975" and is graduated every 5 degrees F. from -25 to +130. The thermometer has a spherical bulb; the back of the stem is milk white; the front of the stem is marked "12975" and is graduated (but not numbered) every degree (presumably Fahrenheit) from -26 to +130. Casella trade literature notes that this thermometer was designed "for registration of temperature in shade," that the thermometer was "engine divided on the stem," and that the "improved" porcelain plate "effectively resisted "frost and all effects of weather."
As in the form described in 1832 by John Phillips, a British geologist, this thermometer has a small air bubble near the top of the mercury column. As the temperature rises, the detached bit of the mercury is pushed up; and this bit remains in place when the temperature falls.
This example was owned by John William Draper or one of his sons, all of whom were accomplished men of science.
Ref: D. J. Warner, "Casella and Phillips' Maximum Thermometers for Meteorology and Medicine," Bulletin of the Scientific Instrument Society 115 (2012): 36-38.
Location
Currently not on view
date made
1860-1897
maker
L. P. Casella
ID Number
PH.334276
accession number
304826
catalog number
334276
Nathaniel M. Lowe, the manufacturer of Edson's Hygrodeik, designed a similar but somewhat simpler instrument for showing the dew point and relative humidity. In this example, the chart is on a white enamel plate marked "LOWE'S Graphic hygrometer" and a monogram.
Description
Nathaniel M. Lowe, the manufacturer of Edson's Hygrodeik, designed a similar but somewhat simpler instrument for showing the dew point and relative humidity. In this example, the chart is on a white enamel plate marked "LOWE'S Graphic hygrometer" and a monogram. It came to the Smithsonian from Trenton State University.
Ref: N. M. Lowe, "Psychrometers," U.S. Patent 202276 (1878).
Location
Currently not on view
maker
Lowe, Nathaniel M.
ID Number
1982.0230.11
accession number
1982.0230
catalog number
1982.0230.11
The rim of this Gurley vernier compass is graduated to 30 minutes. The variation arc on the south arm extends 20 degrees either way, and is read by folded vernier to 2 minutes. Two level vials are on the north arm, and an outkeeper is on the south arm.
Description
The rim of this Gurley vernier compass is graduated to 30 minutes. The variation arc on the south arm extends 20 degrees either way, and is read by folded vernier to 2 minutes. Two level vials are on the north arm, and an outkeeper is on the south arm. The side of one vertical sight is graduated to half degrees, for determining angles of elevation or depression. The machine-engraved signature indicates that it was made after 1876. This compass came to the Smithsonian from the University of Missouri at Columbia.
Ref: W. & L. E. Gurley, A Manual of the Principal Instruments Used in American Engineering and Surveying (Troy, N.Y., 1904), pp. 108-120.
W. Skerritt, "W. & L. E. Gurley's Engraving Machine," Rittenhouse 11 (1997): 97-100.
Location
Currently not on view
maker
W. & L. E. Gurley
ID Number
PH.333661
catalog number
333661
accession number
300659
This transit marked "USC&GS No. 18" was designed by E. G. Fischer, chief mechanician of the U. S. Coast and Geodetic Survey. It is one of two identical instruments that were built in the Survey's instrument shop in 1888–1889.
Description
This transit marked "USC&GS No. 18" was designed by E. G. Fischer, chief mechanician of the U. S. Coast and Geodetic Survey. It is one of two identical instruments that were built in the Survey's instrument shop in 1888–1889. They were said to be "the most complete and best constructed transits the Survey has ever had for longitude." They had about the same optical power as the transits that Troughton & Simms had made in the 1840s, but weighed substantially less. When packed in two boxes for transportation, each instrument weighed "only" about 350 pounds. John Clacey made the objective lenses, and Edward Kahler made the eyepieces.
G. N. Saegmuller, who offered an apparently identical instrument for $900, termed it a "Coast Survey Transit. No. 30" and noted that the Survey used instruments of this sort "for time observations only."
Ref: Edwin Smith, "A Description of Two New Portable Transit Instruments for Longitude Work," Report of the Superintendent of the U.S. Coast and Geodetic Survey for 1889 (Washington, D.C., 1890), Appendix No. 9.
G. N. Saegmuller, Descriptive Price–List of First–Class Engineering & Astronomical Instruments (Washington, D.C., 1903), p. 75.
Location
Currently not on view
ID Number
PH.316661.01
accession number
226636
catalog number
316661
The Magellan Corporation, founded in 1986, worked to develop a handheld, battery-powered GPS receiver for the civilian market. Launched in 1988, the NAV 1000 was the first hand-held receiver introduced to the consumer market.
Description
The Magellan Corporation, founded in 1986, worked to develop a handheld, battery-powered GPS receiver for the civilian market. Launched in 1988, the NAV 1000 was the first hand-held receiver introduced to the consumer market. Magellan anticipated that people would use these devices for hiking, boating and other recreational purposes.
Location
Currently not on view
date made
1988
maker
Magellan Systems Corporation
ID Number
2010.0118.01
accession number
2010.0118
catalog number
2010.0118.01
This compass belonged to John Johnson (1771-1841), the Surveyor-General of Vermont, and the American Commissioner for the survey of the boundary between Maine and Canada in 1817-1820.
Description
This compass belonged to John Johnson (1771-1841), the Surveyor-General of Vermont, and the American Commissioner for the survey of the boundary between Maine and Canada in 1817-1820. From correspondence in the John Johnson papers at the University of Vermont Library, we know that Johnson purchased several instruments from Richard Patten in New York. In March 1820, Johnson ordered two compasses, specifying in great detail which features he wanted on each. For himself he wanted a compass "of at least 7-inch Needle with a tangent Screw and Nonius as to turn it upon minutes." Johnson also ordered a $35 plain compass with a 6-inch needle, for a gentleman of his acquaintance.
The face of this compass is marked "Richard Patten. N. York" and reads clockwise. The vernier appears on a slit cut into the face, while the variation arc, which extends some 20 degrees either way, is located below. This vernier is moved by a rack and pinion on the north arm, and reads to 10 minutes.
Ref: Deborah J. Warner, "Richard Patten (1792-1865)," Rittenhouse 6 (1992): 57-63.
"John Johnson" in Abby M. Hemenway, ed., The Vermont Historical Gazeteer (Burlington, Vt., 1868), vol. 1, pp. 596-599
"John Johnson" in National Cyclopaedia of American History, vol. 17, pp. 290-291
Johnson's report on and correspondence relating to the Maine-Canada boundary survey, in University of Vermont Library.
Location
Currently not on view
owner
Johnson, John
maker
Patten, Richard
ID Number
PH.309544
accession number
95588
catalog number
309544
Danish nautical compass that dates from the 19th century. The inscription reads "S. KJERSGAARD & CO. - KOBENHAVN K."Currently not on view
Description
Danish nautical compass that dates from the 19th century. The inscription reads "S. KJERSGAARD & CO. - KOBENHAVN K."
Location
Currently not on view
ID Number
PH.319412
catalog number
319412
accession number
237602
Joseph Winlock, a professor of astronomy at Harvard, and John S. F.
Description
Joseph Winlock, a professor of astronomy at Harvard, and John S. F. Huddleston, a thermometer and barometer maker in Boston, designed this instrument to provide "a simple, efficient, and convenient means of determining the relative humidity of the atmosphere or the dew-point, so called, without calculation."
In this example, the dry bulb thermometer is mounted on a plate that is marked "HYGROPHANT" and "PATENTED MARCH 31, 1874" and and "805" and graduated every degree Fahrenheit from -30 to +125. The wet bulb thermometer is mounted on a plate that is marked "HUDDLESTON BOSTON" and graduated every degree Fahrenheit from -10 to +125. Between the two is a rotating chart that indicates relative humidity, as well as a plate graduated every degree from 0 to +110.
Ref: J. Winlock and J. S. F. Huddleston, "Psychrometer," U.S. Patent 149176 (1874).
Location
Currently not on view
maker
Huddleston, John S. F.
Winlock, Joseph
ID Number
PH.314864
catalog number
314864
accession number
211531
The "THOS H. BALCH Maker State Street NEWBURYPORT" inscription on the paper card on this wooden compass refers to Thomas H. Balch (1771-1817).
Description
The "THOS H. BALCH Maker State Street NEWBURYPORT" inscription on the paper card on this wooden compass refers to Thomas H. Balch (1771-1817). According to an advertisement in the Newburyport [Massachusetts] Herald for August 8, 1806, Balch's shop could be found under the Sign of the Mariner's Compass. Like many artisans, Balch did not make every part of every instrument that carried his name. From research in local records, Martha Fales found that a local cabinet maker named George Short made the boxes for Balch's nautical compasses.
Ref: Martha G. Fales, "Makers of Mariners' Compasses in Newburyport," American Neptune 28 (1968): 144-145.
Location
Currently not on view
maker
Balch, Thomas H.
Short, George
ID Number
PH.337209
catalog number
337209
accession number
1979.0260
This compass is more British than American, and in Britain it would have been referred to as a "circumferentor." The face reads clockwise. The needle rim is graduated to single degrees, and numbered counterclockwise from north.
Description
This compass is more British than American, and in Britain it would have been referred to as a "circumferentor." The face reads clockwise. The needle rim is graduated to single degrees, and numbered counterclockwise from north. The "Messer London" inscription refers to Benjamin Messer, an instrument maker who was in business during the years 1789–1827.
Ref: Gloria Clifton, Directory of British Scientific Instrument Makers 1550–1851 (London, 1995), p. 187.
Location
Currently not on view
ID Number
PH.327881
catalog number
327881
accession number
271855
This map extends from Pueblo, Colorado, in the east to the conjunction of the Colorado and Flax Rivers in the west, and from north of Breckenridge, Colorado, to south of Albuquerque, New Mexico, or, from about 34°45' to about 39°20' north latitude, and from about 104°50' to about
Description
This map extends from Pueblo, Colorado, in the east to the conjunction of the Colorado and Flax Rivers in the west, and from north of Breckenridge, Colorado, to south of Albuquerque, New Mexico, or, from about 34°45' to about 39°20' north latitude, and from about 104°50' to about 112° longitude west of Greenwich. The scale is 12 miles to the inch. A text in the lower right corner pertains to the “CENTRAL GOLD REGIONS.” It also states “A delicate tint was ruled over the whole plate to give the effect of a plaster model of the country. Constructed and engraved by BARON F. W. VON EGLOFFSTEIN Topographer to the Surveys under the 35th and 38th parallels. Frémont’s, Beckwith’s, and Ives’ Expeditions.” The texts at bottom read “Lettering by John L. Hazzard” and “Ruling by Samuel Sartain” and “[GE]OGRAPHICAL INSTITUTE, BARON F. W. VON EGLOFFSTEIN, NO. 164 BROADWAY, N. YORK. 1864”
Baron Freidrich Wilhelm Von Egloffstein (1824-1885), the topographer who compiled this map, was a German immigrant who came to the United States in 1849. He went with John C. Frémont on a winter trek from St. Louis to the Great Basin (1853-1854), seeking a rail route to the west. He joined Edward G. Beckwith on a railroad reconnaissance from Salt Lake City to California (1854). And he travelled with Joseph C. Ives up the Colorado River and across the Southern Plateau (1857-1858), on an expedition organized by the Corps of Topographical Engineers. He had not gone on the 1859 expedition led by John N. Macomb-a graduate of the U.S. Military Academy and member of the Corps of Topographical Engineers-that aimed to locate a practicable route between Santa Fe, New Mexico, and the military outposts in the southern part of Utah. But he did have access to notes compiled by those who had.
This map incorporates several important and somewhat related technological innovations, all of which Egloffstein had used, to some extent, on his chart of the “AMAKARIMA GROUP WITH PART OF LOO-CHOO” (cat. PH*317505). In order to produce a landscape that appeared remarkably realistic, Egloffstein made topographical models of plaster, and photographed them while lit from one side. In order to reproduce these images, he used the technique known as heliographic etching. Following the lead of the French photographic pioneer, Joseph Nicéphore Niépce, Egloffstein coated his steel photographic plates with a substance (such as bitumen of Judea) that hardened when exposed to light. After taking a picture, he washed away the still-soft parts of the substance, used an acid to eat away those parts of the plate that could now be seen, and printed the result. By inserting a fine mesh (or grid) between the model and the plate, he was able to print halftone images. Egloffstein was not the first to develop a photomechanical printing process-Paul Pretsch in England had organized a company for that purpose in 1854-but his contributions were important nonetheless.
Egloffstein was working on this map in 1860 and asking people in Washington about particular geographical details. He joined the Union army at the start of the Civil War, and was wounded in battle in 1862. He then established a Geographical Institute in New York. It was here that he completed the map, dated it 1864, and distributed some copies. In 1876 the map was published with the official Report of the Exploring Expedition from Santa Fe, New Mexico, to the Junction of the Grand and Green Rivers of the Great Colorado of the West.
Egloffstein included on this map information about several expeditions in addition to the above mentioned ones led by Frémont, Beckwith, Ives, and Macomb. These included a chain survey in eastern New Mexico conducted by J. C. Brown from 1825 to 1827; William W. Loring’s 1858 trek through the San Luis Valley in Colorado; Randolph B. Marcy’s 1858 trek from Utah to New Mexico; Oliver Shepherd’s trek through Arizona in 1859; John S. Simonson’s 1859 trek along the San Juan River; John G. Walker’s 1859 trek through Navajo country south of Four Corners; and Amiel W. Whipple’s 1853 trek to find a route for a transcontinental railroad.
The map is also a clear statement of American interest in and involvement with the area. Utah and New Mexico had become territories in 1850. Colorado became a territory in 1861, in the wake of the gold rush that brought prospectors and settlers to the area around Pike’s Peak. Arizona became a territory in in 1863, at a time when Southerners, who had hoped the area would be hospitable to slavery, had seceded from the Union. Some land in eastern New Mexico and Colorado had been laid out in square townships, 6 miles on a side, according to the procedures of the General Land Survey. The Mormon Settlement is shown in Utah—and, indeed, it was fear of further conflicts with the Mormons that had led the army to sponsor Macomb’s expedition.
Egloffstein also included the path taken by Silvestre Vélez de Escalante, a priest who in 1776 sought a trail from Santa Fe to the missions in California. Other Spanish names on the map include the Spanish Trail, the San Francisco Mountains, and the Sierra Abajo mountains.
Evidence of Native Americans on the map includes Mesa Verde; Moquis Pueblo (the Anglo term for Hopi) in the Painted Desert; Navajo Valley to the east of the Painted Desert; Navajo Mesa (now known as the Black Mesa) in northern Arizona; Ildefonso, Pojoaque, Zandia (aka Sandia), Zuni, and other pueblos in New Mexico; and the ruins at Chaco Canyon and elsewhere.
Evidence of military presence in the area (in addition to the paths of military surveys) includes Fort Union (in northern New Mexico), Fort Defiance (in eastern Arizona), and Fort Hill (in southwestern Colorado).
The map also shows the paths of rivers and the positions of mountains (some with elevations) and mountain passes. Geological features include the Painted Desert in Arizona, the Needles in Utah, the Leroux cold springs and the Pagosa hot springs, the Mines in the Animas River valley (site of a major gold rush in 1860), the Dolores mines of Colorado, and the Burning Coal Bed (now the Lava Beds National Monument) in northern Arizona.
Ref: Imre Josef Demhardt, “An approximation to a bird’s eye view, and is intelligible to every eye . . . Friedrich Wilhelm von Egloffstein, the Exploration of the American West, and Its First Relief Shaded Maps,” in E. Liebenberg and I. J. Demhardt, eds., History of Cartography. International Symposium of the ICA Commission, 2010 (Dordrecht, 2012), pp. 57-74.
David Hanson, “Baron Frederich Wilhelm von Egloffstein,” Printing History 15 (1993): 12-24.
Steven K. Madsden, Exploring Desert Stone: John N. McComb’s 1859 Expedition to the Canyonlands of Colorado (Logan, Utah, 2010).
Stevan Rowan, The Baron in the Grand Canyon: Friedrick Wilhelm von Egloffstein in the West (University of Missouri, 2012).
Location
Currently not on view
Associated Date
1860
1864
1876
ID Number
PH.317493
catalog number
317493
accession number
230397
The Wild RDS is a normal direct-reading theodolite similar to the Wild T16. Here, however, a diagram of reduction curves is projected into the field of view, enabling the surveyor to read the horizontal distance and height distance as intercepts of a graduated vertical rod.
Description
The Wild RDS is a normal direct-reading theodolite similar to the Wild T16. Here, however, a diagram of reduction curves is projected into the field of view, enabling the surveyor to read the horizontal distance and height distance as intercepts of a graduated vertical rod. This example is marked "WILD HEERBRUGG SWITZERLAND RDS-171658" and was probably made in the mid-1970s. It has its original airtight and watertight steel case. The U. S. National Imagery and Mapping Agency transferred it to the Smithsonian in 2000.
Ref: Wild, RDS Auto-Reducing Tacheometer for Vertical Staff (Heerbrugg,n.d.).
Wild, Horizontal Distance and Difference in Height at a Glance. Wild RDS Self-Reducing Tacheometer (Heerbrugg, 1973).
Location
Currently not on view
maker
Wild
ID Number
2000.0257.10
accession number
2000.0257
catalog number
2000.0257.10
This instrument is signed "Geo. Shilling Washn D.C." and "15. U.S.G.S." It was made after 1882 when George Shilling went into business, and before 1907, when the U.S. Geological Survey transferred it to the Smithsonian.
Description
This instrument is signed "Geo. Shilling Washn D.C." and "15. U.S.G.S." It was made after 1882 when George Shilling went into business, and before 1907, when the U.S. Geological Survey transferred it to the Smithsonian. The horizontal circle and vertical arc are silvered, graduated to 30 minutes, and read by verniers to single minutes. A trough compass and level vial sit atop the telescope; a circular level sits on the horizontal circle, obscuring most of Shilling's signature.
George Shilling (1844–1917) was born and educated in Norway and moved to the United States in 1867. In 1882, after working in several American instrument shops, he went into business on his own as a manufacturer of surveying and astronomical instruments. His shop was in Washington, D.C., and the federal government was his biggest customer.
Ref: Historical and Commercial Sketches of Washington and Environs (Washington, D.C., 1884), p. 194.
Location
Currently not on view
maker
Shilling, George
ID Number
PH.247908
catalog number
247908
accession number
47736
This is a Rutherford-type minimum thermometer with a bifurcated bulb. The tube scale is graduated every .2 degrees from -50 to +40, and its milk-glass backing is marked "H.
Description
This is a Rutherford-type minimum thermometer with a bifurcated bulb. The tube scale is graduated every .2 degrees from -50 to +40, and its milk-glass backing is marked "H. Geissler in Bonn" and "Centigrade." The whole is enclosed in an outer glass cylinder.
Heinrich Geissler began manufacturing chemical and physical apparatus in Bonn in 1852 and soon acquired a worldwide reputation. Franz Müller joined the firm in 1874 and, after Geissler's death in 1879, did business as Dr. H. Geissler, Nachfolger Franz Müller.
This example came from Western Reserve University, and was probably used by Edward W. Morley, a noted American scientist.
Location
Currently not on view
date made
ca 1852-1897
maker
Geissler
ID Number
PH.322607
catalog number
322607
accession number
249272
Mercury in glass Fahrenheit thermometer with a brass scale and a brass protective case. The scale ranges from 0 to 220 degrees, graduated every two degrees, and marked "FREEZING", "BLOOD HEAT", and "WATER BOILS." It is also marked "G. TAGLIBUE 302 PEARL ST.
Description
Mercury in glass Fahrenheit thermometer with a brass scale and a brass protective case. The scale ranges from 0 to 220 degrees, graduated every two degrees, and marked "FREEZING", "BLOOD HEAT", and "WATER BOILS." It is also marked "G. TAGLIBUE 302 PEARL ST. N.Y."
Tagliabue was an extended family of Italian descent that specialized in producing such glass instruments as thermometers, barometers, hydrometers and hygrometers. Giuseppe Tagliabue (1812-1878) was born in Como, Italy, apprenticed with a brother in England, immigrated to the United States, established a business in New York in 1834, and won numerous awards for his instruments.
Ref.: "Giuseppe Tagliabue," in , vol 18, p. 273.
Location
Currently not on view
maker
Tagliabue, Giuseppe
ID Number
PH.333985
accession number
304826
catalog number
333985
In 1854, in the interest of safety and economy, the British Parliament authorized the establishment of a uniform system of meteorological observations at sea and the formation of a Meteorological Office within the Board of Trade.
Description
In 1854, in the interest of safety and economy, the British Parliament authorized the establishment of a uniform system of meteorological observations at sea and the formation of a Meteorological Office within the Board of Trade. Under the leadership of Vice-Admiral Robert FitzRoy, the Met Office issued a call for a barometer suitable for use by the Royal Navy. Patrick Adie got the contract, and the Kew Observatory tested each barometer before it was sent out. Matthew F. Maury, director of the U.S. Naval Observatory, reported in 1855 that he had ordered many barometers of this sort for the U.S. Navy.
This example is marked “ADIE, LONDON No 1711” and “SIGNAL SERVICE U.S. ARMY For Comparison of Barometers for International Simultaneous Meteorological Reports.” It may have been acquired by the Signal Service soon after the start of a weather service in 1870; it was last calibrated by the Weather Bureau in 1970.
Ref.: Sara Dry, “Fishermen and Forecasts: How Barometers Helped Make the Meteorological Department Safer in Victorian Britain,” Center for Analysis of Risk and Regulation Discussion Paper 46 (2007).
M.F. Maury, Explanation and Sailing Directions to Accompany the Wind and Current Charts (Philadelphia, 1855), p. 639.
Report of the Chief Signal Officer to the Secretary of War for the Fiscal Year Ending June 30, 1881, p. 1128.
Location
Currently not on view
date made
1854-1886
maker
Adie, Patrick
ID Number
PH.333823
accession number
304553
catalog number
333823
This sextant has a brass frame, and a silvered scale graduated every 10 minutes from -5° to +180° and read by vernier with tangent screw and swinging magnifier to 10 seconds of arc. The inscriptions read "Stackpole & Brother New York" and "2258."Ref: Deborah J.
Description
This sextant has a brass frame, and a silvered scale graduated every 10 minutes from -5° to +180° and read by vernier with tangent screw and swinging magnifier to 10 seconds of arc. The inscriptions read "Stackpole & Brother New York" and "2258."
Ref: Deborah J. Warner, "American Octants and Sextants: The Early Years," Rittenhouse 3 (1989): 86-112, on 108-109.
Location
Currently not on view
date made
ca 1880
maker
Stackpole & Brother
ID Number
PH.335211
accession number
317998
catalog number
335211
The pine box holding this pendulum is marked "To Prof. T. C. Mendenhall Columbus, Ohio U.S.A." and "D Pendulum box June 18th 1882 Phy Laby Tokio." The reference is to Thomas C.
Description
The pine box holding this pendulum is marked "To Prof. T. C. Mendenhall Columbus, Ohio U.S.A." and "D Pendulum box June 18th 1882 Phy Laby Tokio." The reference is to Thomas C. Mendenhall, an American physicist who taught at the Imperial University in Tokyo in the years 1878-1881, used gravity pendulums at Tokyo and atop Mount Fuji, and calculated the mean density of the earth. Mendenhall probably used this pendulum in Japan, but did not mention it in his published papers. He returned to the United States in 1881, and taught physics at the Ohio State University, in Columbus. He became superintendent of the U.S. Coast & Geodetic Survey in 1889.
Ref: Victor Lenzen and Robert Multhauf, "Development of Gravity Pendulums in the 19th Century," United States National Museum Bulletin 240 (1965): 301-348.
Henry Crew, "Thomas Corwin Mendenhall," National Academy of Sciences Biographical Memoirs 16 (1934): 331-351.
T. C. Mendenhall, "Determination of the Acceleration due to the Force of Gravity, at Tokio, Japan," American Journal of Science 20 (1880): 124-132.
T. C. Mendenhall, "On a Determination of the Force of Gravity at the Summit of Fujiyama, Japan," American Journal of Science 21 (1881): 99-103.
Location
Currently not on view
ID Number
PH.330511
catalog number
330511
accession number
295269
Alphonse Fteley was a French engineer who came to the United States in 1865 abdm in 1873, took charge of the Sudbury River Waterworks that would bring potable water from the Sudbury River to customers in Boston.
Description
Alphonse Fteley was a French engineer who came to the United States in 1865 abdm in 1873, took charge of the Sudbury River Waterworks that would bring potable water from the Sudbury River to customers in Boston. To gauge the water flow in the Sudbury River, Fteley borrowed a Baumgarten current meter from General Theodore G. Ellis. Then, working with Buff & Berger, a mathematical instrument firm in Boston, Fteley and his assistant, Frederick P. Stearns, devised a meter with a larger rotor, eight blades with a longer pitch, and a different mechanism for the counting wheels.
Buff & Berger was offering Fteley-Stearns direct-reading water current meters by the early 1880s. Following the dissolution of that firm in 1898, instruments of this sort could be had from Buff & Buff and from C. L. Berger & Sons. A Fteley-Stearns meter with ordinary registering apparatus cost $160 in 1899. The same, with an electric register, cost $220.
This example is marked “C. L. Berger & Sons / Boston, U.S.A. / 5969.” The additional “U.S.G.S. / 781 / HYDRO” mark indicates that it was used by the Hydrologic Department of the U.S. Geological Survey. Arthur Frazier donated it to the Smithsonian in 1970.
Ref: Alphonse Fteley and Frederick P. Stearns, “Description of some Experiments on the Flow of Water, made during the Construction of Works for Conveying the Water of Sudbury River to Boston,” Transactions of the American Society of Civil Engineers 12 (1883): 1-118.
Frederick P. Stearns, “On the Current Meter, Together with a Reason Why the Maximum Velocity of the Water Flowing in Open Channels is Below the Surface,” Transactions of the American Society of Civil Engineers 12 (1883): 301-388.
C. L. Berger & Sons, Hand-Book and Illustrated Catalogue of the Engineers’ and Surveyors’ Instruments (Boston, 1899), pp. 196-199.
“Alphonse Fteley,” Journal of the Association of Engineering Societies 31 (1903): 213-215.
Arthur H. Frazier, Water Current Meters in the Smithsonian Collections of the National Museum of History and Technology (Washington, D.C., 1974), pp. 59-60.
Location
Currently not on view
date made
after 1898
maker
C. L. Berger and Sons
ID Number
PH.330410
accession number
289788
catalog number
330410
This precise level is marked "J. Kern Aarau" and "U.S.C.&G.S. #36." It has a high-power inverting telescope and a delicate striding bubble level. A mirror above the level lets the observer read the bubble with one eye while sighting the rod with the other.
Description
This precise level is marked "J. Kern Aarau" and "U.S.C.&G.S. #36." It has a high-power inverting telescope and a delicate striding bubble level. A mirror above the level lets the observer read the bubble with one eye while sighting the rod with the other. A micrometer screw under one wye permits fine adjustments.
J. Kern was an instrument maker in Aarau, Switzerland, whose precise levels were recommended by the International Geodetic Commission in 1864. To enhance his position in the American market, Kern mounted a display at the Centennial Exhibition held in Philadelphia in 1876. This example was made after 1878, when the U. S. Coast Survey became the U. S. Coast and Geodetic Survey, and before 1889, when J. Kern began trading as Kern & Cie.
Ref: Randall Brooks and Heather Bajdik, "Precise Levels in Surveys of North America," Rittenhouse 10 (1996): 48-57.
Location
Currently not on view
maker
Kern & Co.
ID Number
PH.307209
catalog number
307209
accession number
65983
This is a replica of the second model of the hair hygrometer devised by Horace Benedict de Saussure (1740-1799).Ref: Horace Bénédict de Saussure, Essais sur l’Hygrometrie (Neufchatel, 1783).Currently not on view
Description
This is a replica of the second model of the hair hygrometer devised by Horace Benedict de Saussure (1740-1799).
Ref: Horace Bénédict de Saussure, Essais sur l’Hygrometrie (Neufchatel, 1783).
Location
Currently not on view
date made
before 1954
ID Number
PH.314542
catalog number
314542
accession number
204612

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