Science & Mathematics

The Museum's collections hold thousands of objects related to chemistry, biology, physics, astronomy, and other sciences. Instruments range from early American telescopes to lasers. Rare glassware and other artifacts from the laboratory of Joseph Priestley, the discoverer of oxygen, are among the scientific treasures here. A Gilbert chemistry set of about 1937 and other objects testify to the pleasures of amateur science. Artifacts also help illuminate the social and political history of biology and the roles of women and minorities in science.

The mathematics collection holds artifacts from slide rules and flash cards to code-breaking equipment. More than 1,000 models demonstrate some of the problems and principles of mathematics, and 80 abstract paintings by illustrator and cartoonist Crockett Johnson show his visual interpretations of mathematical theorems.

This tinted lithograph of “Mission and Plain of San Fernando” was originally drawn by an expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate VI following page 74 in the "Geological Report by W. P.
Description (Brief)
This tinted lithograph of “Mission and Plain of San Fernando” was originally drawn by an expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate VI following page 74 in the "Geological Report by W. P. Blake (1826-1910), Geologist and Minerologist to the Expedition," as part of Volume V, Part II of the "Report of Lieutenant R. S. Williamson (1825-1882), Corps of Topographical Engineers, Upon the Routes in California to Connect with the Routes Near the Thirty-fifth and Thirty-second Parallels" by Lieutenant R. S. Williamson ... in 1853."
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1856 by A. P. O. Nicholson (1808-1876) in Washington, D.C.
Location
Currently not on view
date made
1856
publisher
U.S. War Department
printer
Tucker, Beverley
author
Williamson, Robert Stockton
Blake, William Phipps
original artist
Koppel, Charles
graphic artist
unknown
publisher
U.S. Army Corps of Engineers Topographic Command
ID Number
GA.10729.38
accession number
62261
This tinted lithograph of “Mirage on the Colorado River” was prepared after an original sketch by ah expedition geologist and artist William P. Blake (1826-1910). It was printed as Plate XII in Volume V, Part II following page 250 in the "Geological Report by W. P.
Description
This tinted lithograph of “Mirage on the Colorado River” was prepared after an original sketch by ah expedition geologist and artist William P. Blake (1826-1910). It was printed as Plate XII in Volume V, Part II following page 250 in the "Geological Report by W. P. Blake, Geologist and Minerologist to the Expedition," as part of Volume V, Part II of the “Routes in California, to Connect with the Routes near the Thirty–Fifth and Thirty–Second Parallels, Explored by Lieutenant R. S. Williamson, Corps of Topographical Engineers, in 1853."
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1856 by A. P. O. Nicholson (1808-1876) of Washington, D.C.
Location
Currently not on view
date made
1856
publisher
U.S. War Department
printer
Tucker, Beverley
expedition leader
Williamson, Robert Stockton
author
Blake, William Phipps
original artist
Blake, William Phipps
graphic artist
unknown
publisher
U.S. Army Corps of Engineers Topographic Command
ID Number
GA.10729.32
accession number
62261
This tinted lithograph of “Great Basin from the Summit of Tejon Pass” was produced after an original sketch by expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate V in Volume V, Part II following page 50 in the "Geological Report by W. P.
Description (Brief)
This tinted lithograph of “Great Basin from the Summit of Tejon Pass” was produced after an original sketch by expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate V in Volume V, Part II following page 50 in the "Geological Report by W. P. Blake, Geologist and Minerologist to the Expedition," as part of the “Routes in California, to Connect with the Routes near the Thirty–Fifth and Thirty–Second Parallels, Explored by Lieutenant R. S. Williamson, Corps of Topographical Engineers, in 1853."
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1856 by A. P. O. Nicholson (1808-1876) of Washington, D.C.
Location
Currently not on view
date made
1856
publisher
U.S. War Department
printer
Tucker, Beverley
author
Williamson, Robert Stockton
original artist
Koppel, Charles
Koppel, Charles
graphic artist
unknown
publisher
U.S. Army Corps of Engineers Topographic Command
original artist
Koppel, Charles
ID Number
GA.10729.33
accession number
62261
This engraved woodblock of "Marble Canyon” was prepared by engraver Edward Bookhout (1844-1886) and the Government Printing Office in Washington, D.C.; the print was published in 1875 as Figure 26 (p.77) in Report of the Exploration of the Colorado River of the West and Its Tribu
Description
This engraved woodblock of "Marble Canyon” was prepared by engraver Edward Bookhout (1844-1886) and the Government Printing Office in Washington, D.C.; the print was published in 1875 as Figure 26 (p.77) in Report of the Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution by John Wesley Powell (1834-1902). Thomas Moran (1837-1926) accompanied Powell on his expedition and drew the original image.
Location
Currently not on view
date made
ca 1875
1875
original artist
Moran, Thomas
publisher
Bureau of American Ethnology
printer
Government Printing Office
author
Powell, John Wesley
graphic artist
Bookhout, Edward
block maker
V. W. & Co.
ID Number
1980.0219.0259
catalog number
1980.0219.0259
accession number
1980.0219
This engraved woodblock of “Climbing the Grand Canyon” was prepared by F. S.
Description
This engraved woodblock of “Climbing the Grand Canyon” was prepared by F. S. King and the Government Printing Office in Washington, D.C.; the print was published in 1875 on page 98 of John Wesley Powell's Report of the Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution. Thomas Moran (1837-1926) was the original artist.
Location
Currently not on view
date made
ca 1875
1875
publisher
Bureau of American Ethnology
printer
Government Printing Office
author
Powell, John Wesley
original artist
Moran, Thomas
graphic artist
King, Francis Scott
maker
V. W. & Co.
ID Number
1980.0219.0474
accession number
1980.0219
catalog number
1980.0219.0474
This engraved woodblock of an “Australian grave and carved trees” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 37 (p.76) in an article by Garrick Mallery (1831-1894) entitled “Pictographs of the North American Indians: a pr
Description
This engraved woodblock of an “Australian grave and carved trees” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 37 (p.76) in an article by Garrick Mallery (1831-1894) entitled “Pictographs of the North American Indians: a preliminary paper” in the Fourth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian, 1882-83.
Location
Currently not on view
date made
1886
publisher
Bureau of American Ethnology
printer
Government Printing Office
author
Mallery, Garrick
block maker
J. J. & Co.
ID Number
1980.0219.1206
catalog number
1980.0219.1206
accession number
1980.0219
The discovery of nuclear fission in uranium, announced in 1939, allowed physicists to advance with confidence in the project of creating "trans-uranic" elements - artificial ones that would lie in the periodic table beyond uranium, the last and heaviest nucleus known in nature.
Description
The discovery of nuclear fission in uranium, announced in 1939, allowed physicists to advance with confidence in the project of creating "trans-uranic" elements - artificial ones that would lie in the periodic table beyond uranium, the last and heaviest nucleus known in nature. The technique was simply to bombard uranium with neutrons. Some of the uranium nuclei would undergo fission, newly understood phenomenon, and split violently into two pieces. In other cases, however, a uranium-238 nucleus (atomic number 92) would quietly absorb a neutron, becoming a nucleus of uranium-239, which in turn would soon give off a beta-particle and become what is now called neptunium-239 (atomic number 93). After another beta decay it would become Element 94 (now plutonium-239)
By the end of 1940, theoretical physicists had predicted that this last substance, like uranium, would undergo fission, and therefore might be used to make a nuclear reactor or bomb. Enrico Fermi asked Emilio Segre to use the powerful new 60-inch cyclotron at the University of California at Berkeley to bombard uranium with slow neutrons and create enough plutonium-239 to test it for fission. Segre teamed up with Glenn T. Seaborg, Joseph W. Kennedy, and Arthur C. Wahl in January 1941 and set to work.
They carried out the initial bombardment on March 3-6, then, using careful chemical techniques, isolated the tiny amount (half a microgram) of plutonium generated. They put it on a platinum disc, called "Sample A," and on March 28 bombarded it with slow neutrons to test for fission. As expected, it proved to be fissionable - even more than U-235. To allow for more accurate measurements, they purified Sample A and deposited it on another platinum disc, forming the "Sample B" here preserved. Measurements taken with it were reported in a paper submitted to the Physical Review on May 29, 1941, but kept secret until 1946. (The card in the lid of the box bears notes from a couple of months later.)
After the summer of 1941, this particular sample was put away and almost forgotten, but the research that began with it took off in a big way. Crash programs for the production and purification of plutonium began at Berkeley and Chicago, reactors to make plutonium were built at Hanford, Washington, and by 1945 the Manhattan Project had designed and built a plutonium atomic bomb. The first one was tested on July 16, 1945 in the world's first nuclear explosion, and the next was used in earnest over Nagasaki. (The Hiroshima bomb used U-235.)
Why is our plutonium sample in a cigar box? G.N. Lewis, a Berkeley chemist, was a great cigar smoker, and Seaborg, his assistant, made it a habit to grab his boxes as they became empty, to use for storing things. In this case, it was no doubt important to keep the plutonium undisturbed and uncontaminated, on the one hand, but also, on the other hand, to make it possible for its weak radiations to pass directly into instruments - not through the wall of some closed container. Such considerations, combined probably with an awareness of the historic importance of the sample, brought about the storage arrangement we see.
Location
Currently not on view
Date made
1941-05-21
Associated Date
1941-05-29
referenced
Segre, Emilio
Seaborg, Glenn T.
Kennedy, Joseph W.
Wahl, Arthur C.
Lewis, G. N.
University of California, Berkeley
maker
Segre, Emilio
Seaborg, Glenn
ID Number
EM.N-09384
catalog number
N-09384
accession number
272669
This engraved woodblock of a “Haida totem post” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 24 (p.68) in an article by Garrick Mallery (1831-1894) entitled “Pictographs of the North American Indians: a preliminary paper” i
Description
This engraved woodblock of a “Haida totem post” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 24 (p.68) in an article by Garrick Mallery (1831-1894) entitled “Pictographs of the North American Indians: a preliminary paper” in the Fourth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian, 1882-83.
Location
Currently not on view
date made
1886
publisher
Bureau of American Ethnology
printer
Government Printing Office
author
Mallery, Garrick
block maker
J. J. & Co.
ID Number
1980.0219.1509
accession number
1980.0219
catalog number
1980.0219.1509
This engraved woodblock of the “Bird’s-eye view of cliffs of erosion” was prepared and printed by the Government Printing Office in Washington, D.C.; the image was published in 1875 as Figure 74 (p.162) in The Exploration of the Colorado River of the West by John Wesley Powell (1
Description
This engraved woodblock of the “Bird’s-eye view of cliffs of erosion” was prepared and printed by the Government Printing Office in Washington, D.C.; the image was published in 1875 as Figure 74 (p.162) in The Exploration of the Colorado River of the West by John Wesley Powell (1834-1902). Henry Hobart Nichols (1838-1887) engraved the illustration which “depicts the Shin-ar’-ump Cliffs, Vermillion Cliffs, and Gray Cliffs, in order from right to left.”
Location
Currently not on view
date made
ca 1875
1875
printer
Government Printing Office
publisher
Bureau of American Ethnology
author
Powell, John Wesley
graphic artist
Nichols, H. H.
block maker
V. W. & Co.
ID Number
1980.0219.1562
accession number
1980.0219
catalog number
1980.0219.1562
During World War I, the U.S. Army needed to sort out the thousands of recruits arriving at training camps. Psychologists claimed that their young science offered an objective, efficient way to classify men, weeding out the mentally unfit.
Description
During World War I, the U.S. Army needed to sort out the thousands of recruits arriving at training camps. Psychologists claimed that their young science offered an objective, efficient way to classify men, weeding out the mentally unfit. Intelligence tests available at the time had been designed for children, given individually, and in many cases were unstandardized. No one knew precisely what they measured or how these measurements related to military performance. Nonetheless, over 1,700,000 American soldiers took intelligence tests during the war.
Group Examination Alpha was for men who could read English. It tested the ability to follow oral directions, arithmetic, vocabulary, pattern recognition, general information, and “common sense.”
Location
Currently not on view
date made
1918
maker
United States Army. Medical Department. Division of Psychology
ID Number
1990.0334.01
catalog number
1990.0334.01
accession number
1990.0334
At the time of World War I, American psychologists hoped to extend intelligence testing from children to adults. They persuaded the U.S. Army to test its recruits in order to weed out those mentally unfit for duty overseas.
Description
At the time of World War I, American psychologists hoped to extend intelligence testing from children to adults. They persuaded the U.S. Army to test its recruits in order to weed out those mentally unfit for duty overseas. Tests were given to groups of soldiers, with paper and pencil replacing the puzzles and other objects used in earlier tests . Over 1.6 million soldiers took the exams. This 1918 form of the test was called the Army Beta Examination. It was designed for illiterates and those who spoke no English. Instructions were given by pantomime. In the portion of the test shown, inductees were asked to draw the missing part of the pictures.
Location
Currently not on view
Date made
1918
maker
Office of the Surgeon General. Division of Psychology
ID Number
1990.0334.02
accession number
1990.0334
catalog number
1990.0334.02
This engraved woodblock of “Bird’s-eye view of the Grand Canyon" was prepared by Henry Hobart Nichols (1838-1887) and the Government Printing Office in Washington, D.C.; the print was published in 1875 as as Figure 72 (p.187) in Report of the Exploration of the Colorado River of
Description
This engraved woodblock of “Bird’s-eye view of the Grand Canyon" was prepared by Henry Hobart Nichols (1838-1887) and the Government Printing Office in Washington, D.C.; the print was published in 1875 as as Figure 72 (p.187) in Report of the Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution by John Wesley Powell (1834-1902).
Location
Currently not on view
date made
1875
publisher
Bureau of American Ethnology
printer
Government Printing Office
author
Powell, John Wesley
graphic artist
Nichols, H. H.
ID Number
1980.0219.0467
accession number
1980.0219
catalog number
1980.0219.0467
This engraved woodblock of “Tholomomys Chusius” or (Thomomys Clusius) Wyoming Pocket Gopher was prepared by the Government Printing Office in Washington, D.C.; the image was published in 1875 as Figure 80 (p.265) in Report of the Exploration of the Colorado River of the West and
Description
This engraved woodblock of “Tholomomys Chusius” or (Thomomys Clusius) Wyoming Pocket Gopher was prepared by the Government Printing Office in Washington, D.C.; the image was published in 1875 as Figure 80 (p.265) in Report of the Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution by John Wesley Powell (1834-1902). The image appears in Part Third, entitled “Zoology” by Elliott Coues (1842-1899). The illustration was engraved by Henry Hobart Nichols (1838-1887).
Location
Currently not on view
date made
ca 1875
1875
publisher
Bureau of American Ethnology
printer
Government Printing Office
graphic artist
Nichols, H. H.
original artist
Keene, S. W.
author
Coues, Elliott
block maker
V. W. & Co.
author
Powell, John Wesley
ID Number
1980.0219.1088
catalog number
1980.0219.1088
accession number
1980.0219
This engraved woodblock of a “View of Marble Canyon (from the Vermillion Cliffs)” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 63 (p.180) in Report of the Exploration of the Colorado River of the West and Its Tributaries.
Description
This engraved woodblock of a “View of Marble Canyon (from the Vermillion Cliffs)” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 63 (p.180) in Report of the Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution by John Wesley Powell (1834-1902). The image depicts the “Colorado River [and] the Eastern Kaibab Displacements, appearing as folds [and] faults.”
Location
Currently not on view
date made
ca 1875
1875
publisher
Bureau of American Ethnology
printer
Government Printing Office
author
Powell, John Wesley
graphic artist
Nichols, H. H.
block maker
V. W. & Co.
ID Number
1980.0219.1355
catalog number
1980.0219.1355
accession number
1980.0219
This engraved woodblock of “Light House Rock in the Canyon of Desolation” was prepared by Henry Hobart Nichols (1838-1887) and the Government Printing Office in Washington, D.C.; the print was published in 1875 as Figure 17 (p.49) in Report of the Exploration of the Colorado Rive
Description
This engraved woodblock of “Light House Rock in the Canyon of Desolation” was prepared by Henry Hobart Nichols (1838-1887) and the Government Printing Office in Washington, D.C.; the print was published in 1875 as Figure 17 (p.49) in Report of the Exploration of the Colorado River of the West and Its Tributaries. Explored in 1869, 1870, 1871, and 1872, under the direction of the Secretary of the Smithsonian Institution by John Wesley Powell (1834-1902).
Location
Currently not on view
date made
ca 1875
1875
printer
Government Printing Office
publisher
Bureau of American Ethnology
author
Powell, John Wesley
graphic artist
Nichols, H. H.
ID Number
1980.0219.0068
accession number
1980.0219
catalog number
1980.0219.0068
This engraved woodblock of a man walking beneath a bare tree was prepared in about 1880 by the Government Printing Office in Washington, D.C. for the Bureau of American Ethnology.Currently not on view
Description
This engraved woodblock of a man walking beneath a bare tree was prepared in about 1880 by the Government Printing Office in Washington, D.C. for the Bureau of American Ethnology.
Location
Currently not on view
date made
ca 1880
publisher
Bureau of American Ethnology
printer
Government Printing Office
ID Number
1980.0219.0143
catalog number
1980.0219.0143
accession number
1980.0219
This engraved woodblock of the “Parsee Towers of Silence (interior).” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 3 on page 104 in an article by H.C.
Description
This engraved woodblock of the “Parsee Towers of Silence (interior).” was prepared by the Government Printing Office in Washington, D.C.; the image was published as Figure 3 on page 104 in an article by H.C. Yarrow (1871-1876) entitled “Mortuary Customs of North American Indians” in the First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian, 1879-80. Henry Hobart Nichols (1838-1887) engraved the image.
Location
Currently not on view
date made
1881
publisher
Bureau of American Ethnology
printer
Government Printing Office
graphic artist
Nichols, H. H.
author
Yarrow, Harry Crecy
ID Number
1980.0219.1356
catalog number
1980.0219.1356
accession number
1980.0219
This tinted lithograph of “Los Angeles" was produced by Thomas Sinclair (1805-1881) after an original sketch by expedition artist Charles Koppel (fl. 1853-1865).
Description (Brief)
This tinted lithograph of “Los Angeles" was produced by Thomas Sinclair (1805-1881) after an original sketch by expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate X in Volume V, Part I, following page 34, in the "General Report," part of the “Routes in California, to Connect with the Routes near the Thirty–Fifth and Thirty–Second Parallels, Explored by Lieutenant R. S. Williamson, Corps of Topographical Engineers, in 1853."
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1856 by A. P. O. Nicholson (1808-1876) of Washington, D.C.
Location
Currently not on view
date made
1856
publisher
U.S. War Department
printer
Tucker, Beverley
author
Williamson, Robert Stockton
original artist
Koppel, Charles
graphic artist
unknown
publisher
U.S. Army Corps of Engineers Topographic Command
ID Number
GA.10729.36
accession number
62261
This tinted lithograph of “Metamorphic Rocks - Borders of the Desert" was produced after an original sketch by expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate XIII in Volume V, Part II, following page 235, in the "Geological Report by W. P.
Description (Brief)
This tinted lithograph of “Metamorphic Rocks - Borders of the Desert" was produced after an original sketch by expedition artist Charles Koppel (fl. 1853-1865). It was printed as Plate XIII in Volume V, Part II, following page 235, in the "Geological Report by W. P. Blake, Geologist and Minerologist to the Expedition," as part of the “Routes in California, to Connect with the Routes near the Thirty–Fifth and Thirty–Second Parallels, Explored by Lieutenant R. S. Williamson, Corps of Topographical Engineers, in 1853."
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1856 by A. P. O. Nicholson (1808-1876) of Washington, D.C.
Location
Currently not on view
date made
1856
publisher
U.S. War Department
printer
Tucker, Beverley
graphic artist
unknown
original artist
Koppel, Charles
author
Blake, William Phipps
Williamson, Robert Stockton
publisher
U.S. Army Corps of Engineers Topographic Command
original artist
Koppel, Charles
ID Number
GA.10729.37
accession number
62261
This tinted lithograph of “Fort Massachusetts at the Foot of the Sierra Blanca Valley of San Luis" was produced by Thomas Sinclair (1805-1881), Philadelphia, after a sketch by John Mix Stanley (1814-1872) and an original sketch by expedition artist R. H. Kern (1821-1853).
Description
This tinted lithograph of “Fort Massachusetts at the Foot of the Sierra Blanca Valley of San Luis" was produced by Thomas Sinclair (1805-1881), Philadelphia, after a sketch by John Mix Stanley (1814-1872) and an original sketch by expedition artist R. H. Kern (1821-1853). It was printed as a plate in Volume II following page 38, in the "Report of Explorations for a Route for the Pacific Railroad, by Captain J. W. Gunnison (1812-1853), Topographical Engineers, Near the 38th and 39th Parallels of North Latitude, from the Mouth of the Kansas River, Missouri to the Sevier Lake in the Great Basin" by Lieutenant E. G. Beckwith (1818-1881), Third Artillery.
The volume was printed as part of the "Reports of Explorations and Surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean" in 1855 by A. P. O. Nicholson (1808-1876) of Washington, D.C.
Location
Currently not on view
date made
1855
engraver
Stanley, John Mix
artist
Kern, Richard H.
printer
Sinclair, T.
publisher
U.S. War Department
author
Beckwith, Edward Griffin
Gunnison, John Williams
printer
Tucker, Beverley
publisher
U.S. Army Corps of Engineers Topographic Command
ID Number
GA.10729.27
accession number
62261
As scientists found that even the best dip circles gave unreliable results, they began using earth inductors to determine magnetic dip. In 1912, the Department of Terrestrial Magnetism of the Carnegie Institution of Washington developed a new earth inductor for use at sea.
Description
As scientists found that even the best dip circles gave unreliable results, they began using earth inductors to determine magnetic dip. In 1912, the Department of Terrestrial Magnetism of the Carnegie Institution of Washington developed a new earth inductor for use at sea. It had three key elements: an improved gimbal stand, a means for rotating the coil without disturbing the gimbal rings, and a sensitive galvanometer.
This example marked "D.T.M. C.I.W. E.I. N° 3" is the third Carnegie marine earth inductor. When the Carnegie closed its program in terrestrial magnetism, it was lent to the U.S. Coast and Geodetic Survey. The U.S. Geological Survey acquired it in 1973 when it took over the geomagnetic program of the federal government, and transferred it to the Smithsonian in 1982.
Ref: J. A. Fleming, "Description of the C.I.W. Marine Earth
Inductor," Terrestrial Magnetism 18 (1912): 39-45.
C. W. Hewlett, "Report on the C.I.W. Marine Earth Inductor," Terrestrial Magnetism 18 (1912): 46-48.
Location
Currently not on view
Date made
1912
maker
Carnegie Institution of Washington. Department of Terrestrial Magnetism
ID Number
1982.0671.05
accession number
1982.0671
catalog number
1982.0671.05
This aluminum bar, with an X-shaped cross-section, is a replica of the platinum international meter prototype housed in Paris and used as a standard for the metric system from 1889 to 1960. On one side, the lower left corner is marked: A.27.
Description
This aluminum bar, with an X-shaped cross-section, is a replica of the platinum international meter prototype housed in Paris and used as a standard for the metric system from 1889 to 1960. On one side, the lower left corner is marked: A.27. The upper right corner is marked: B.27. Like an actual meter standard, the bar is 102 centimeters long and there are marks 1 centimeter from each end on this side to show the precise length of a meter. Compare to 2000.0126.25.
A rectangular walnut case is lined with black felt. A brass plate on the top of the case is marked: REPLICA METER BAR (/) Presented to (/) BENJAMIN L. PAGE (/) Metrologist (/) National Bureau of Standards (/) On the occasion of his retirement (/) December 29, 1961.
Benjamin Lorenzo Page (1894–1977) began working with length standards at the National Bureau of Standards (now the National Institute of Standards and Technology) around 1920. He was presented with this replica when he retired. His widow, Helen (Bell) Page, then gave it to one of his colleagues, Rolland Ackermann (1905–1985).
References: Catalog of Artifacts on Display in the NBS Museum, edited by H. L. Mason, NBSIR 76-1125 (Washington, D.C., 1977), 17; Robert P. Crease, World in the Balance: The Historic Quest for an Absolute System of Measurement (New York: W. W. Norton, 2011), 223; Herbert Arthur Klein, The Science of Measurement: A Historical Survey (reprint, New York: Dover, 1988), 185; "Benjamin Lorenzo 'Ben' Page," http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=35098794; Calibrations of the Line Standards of Length of the National Bureau of Standards, by Lewis V. Judson and Benjamin L. Page, RP743, Bureau of Standards Journal of Research 11 (July-December 1933).
Location
Currently not on view
date made
1961
Maker
National Bureau of Standards
ID Number
1985.0819.01
accession number
1985.0819
catalog number
1985.0819.01
Erasable surfaces like slates and blackboards have been used in the United States since the late 18th century and became popular in the first half of the 19th century.
Description
Erasable surfaces like slates and blackboards have been used in the United States since the late 18th century and became popular in the first half of the 19th century. A few teachers also acquired globes painted with “liquid slating” that could be marked with a slate pencil or chalk. These were used in teaching geography, astronomy, navigation, and spherical trigonometry. Commercial slated globes sold from the 1850s onward. This example, which comes with its own stand, is undated and unmarked. A small hour circle is near the North Pole. The meridian circle of the stand is graduated to degrees on both sides.
The object was received at the museum from the National Bureau of Standards in the 1960s and transferred to the collections some years later.
References:
Accession file.
P. A. Kidwell, A. Ackerberg-Hastings, and D. L. Roberts, Tools of American Mathematics Teaching 1800-2000, Baltimore: Johns Hopkins University Press, 2008, esp. pp. 29-30.
D. J. Warner, “Geography of Heaven and Earth, Part 4,” Rittenhouse, 2, 1988, esp. 110-112, 120, 127-129.
Location
Currently not on view
ID Number
1989.0188.01
catalog number
1989.0188.01
accession number
1989.0188
This pink leaflet gives information about the trigonometric computing instrument stored with it (1986.0441.01).Currently not on view
Description
This pink leaflet gives information about the trigonometric computing instrument stored with it (1986.0441.01).
Location
Currently not on view
date made
ca 1954
maker
Roeder, George E.
ID Number
1986.0441.02
accession number
1986.0441
catalog number
1986.0441.02

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