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The clerical work of the Economics and Statistics Division varies from calculating estimates of population and the rate of residential building to actuarial calculations or estimates of volume of funds available for lending on home mortgages

The clerical work of the Economics and Statistics Division varies from...

Public domain photograph of office, auditorium, free to use, no copyright restrictions image - Picryl description

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Puck magazine cover - Spoiling their calculations / J. Keppler.

Puck magazine cover - Spoiling their calculations / J. Keppler.

Illustration shows James G. Blaine and Chester A. Arthur sitting at a table on which are papers that state "The Republican State Convention at Utica, N.Y., April 23 1884" and "The Delegates At Large of New York... More

Smelling out a rat; or the atheistical-revolutionist disturbed in his midnight "calculations", British Cartoon Print

Smelling out a rat; or the atheistical-revolutionist disturbed in his ...

Print shows Richard Price seated at a desk, he turns to look over his right shoulder at a vision of an enormous Edmund Burke, his spectacles, nose, and hands emerge from the haze, a crown in one hand and a cros... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculations

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculation...

with Calculations Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Thomas Jefferson, no date, Calculations for Library Shelves

Thomas Jefferson, no date, Calculations for Library Shelves

Calculations for Library Shelves Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculations

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculation...

with Calculations Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Thomas Jefferson, 1817, Beverlytown Lots Calculations of Worth

Thomas Jefferson, 1817, Beverlytown Lots Calculations of Worth

Beverlytown Lots Calculations of Worth Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Thomas Jefferson, April 10, 1823, University of Virginia Agreement, with Calculations

Thomas Jefferson, April 10, 1823, University of Virginia Agreement, wi...

University of Virginia Agreement, with Calculations

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Fisheries, 1791, Codfishery Financial Calculations

Fisheries, 1791, Codfishery Financial Calculations

Codfishery Financial Calculations Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculations

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculation...

with Calculations Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Thomas Jefferson, no date, Calculations for Library Shelves

Thomas Jefferson, no date, Calculations for Library Shelves

Calculations for Library Shelves Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Calculations, shewing in what time a permanent bridge over the river Schuylkill, supposed to cost two hundred thousand dollars, may be built and redeemed from the estimated combined product of duties on sales at auction within the city of Philad

Calculations, shewing in what time a permanent bridge over the river S...

Evans 34360. Page Order: Leaflet Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 149, Folder 5.

Calculations, shewing in what time a permanent bridge over the river Schuylkill, supposed to cost two hundred thousand dollars, may be built and redeemed from the estimated combined product of duties on sales at auction within the city of Philad

Calculations, shewing in what time a permanent bridge over the river S...

Evans 34360. Page Order: Leaflet Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 149, Folder 5.

[Box with rotating rods and a matrix for doing mathematical calculations]

[Box with rotating rods and a matrix for doing mathematical calculatio...

Illus. in: Organum mathematicum .... Herbipoli : Sumptibus Johannis Andreae Endteri & Wolfgangi Jun. haeredum excudebat Jobus Hertz ... ; Prostant Norimbergae : Apud dictos Endteros, anno 1668. Published in: T... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Thomas Barclay to Thomas Jefferson, August 15, 1785, Memorandum on Tobacco Trade; Tax Calculations
Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Thomas Jefferson, 1783, Notes and Calculations on Regional Concerns in Congress

Thomas Jefferson, 1783, Notes and Calculations on Regional Concerns in...

Notes and Calculations on Regional Concerns in Congress

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Calculations, shewing in what time a permanent bridge over the river Schuylkill, supposed to cost two hundred thousand dollars, may be built and redeemed from the estimated combined product of duties on sales at auction within the city of Philad

Calculations, shewing in what time a permanent bridge over the river S...

Evans 34360. Page Order: Leaflet Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 149, Folder 5.

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculations

Alden Partridge to Thomas Jefferson, January 9, 1818, with Calculation...

with Calculations Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Plain calculations. When the people of a free country, who are not slaves of any man&s ambition, passions or policy, are carried into a war, the most dreadful of human afflictions, they have a right to demand clear and satisfactory answers to th
Plain calculations. When the people of a free country, who are not slaves of any man&s ambition, passions or policy, are carried into a war, the most dreadful of human afflictions, they have a right to demand clear and satisfactory answers to th
Thomas Barclay to Thomas Jefferson, August 15, 1785, Memorandum on Tobacco Trade; Tax Calculations
Thomas Jefferson, April 10, 1823, University of Virginia Agreement, with Calculations

Thomas Jefferson, April 10, 1823, University of Virginia Agreement, wi...

University of Virginia Agreement, with Calculations

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Fisheries, 1791, Codfishery Financial Calculations

Fisheries, 1791, Codfishery Financial Calculations

Codfishery Financial Calculations Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Thomas Jefferson, no date, Calculations on Architecture and Timber

Thomas Jefferson, no date, Calculations on Architecture and Timber

Calculations on Architecture and Timber Public domain scan of Thomas Jefferson correspondence, American history, free to use, no copyright restrictions image - Picryl description.

Thomas Barclay to Thomas Jefferson, August 15, 1785, Memorandum on Tobacco Trade; Tax Calculations
Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

United States Census, 1791, Census Calculations, 1791 and 1801
Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Thomas Barclay to Thomas Jefferson, August 15, 1785, Memorandum on Tobacco Trade; Tax Calculations
Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More

Subject File:  Smithsonian Institution--Dispute--Langley Machine--Measurements and Calculations, 1915, 1938-1942, undated

Subject File: Smithsonian Institution--Dispute--Langley Machine--Meas...

The Wilbur and Orville Wright Papers is a collection of documents related to the Wright brothers, two American inventors who are credited with building and flying the first successful powered airplane. The coll... More