David Rittenhouse

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Observations on a Comet Lately Discovered; Communicated by David Rittenhouse, Esq

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 195

Created: 2026-05-30, modified: 2026-05-30

A Letter to David Rittenhouse, Esq. from John Page, Esq. From David Rittenhouse, Esq. to John Page, Esq. Concerning a Remarkable Meteor Seen in Virginia and Pennsylvania

Authors: John Page | David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 173-176

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005176

On the Expansion of Wood by Heat, in a Letter from David Rittenhouse L. L. D. President of the Society

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1799, in volume 4, pages 29-31

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005079

An Optical Problem, Proposed by Mr. Hopkinson, and Solved by Mr. Rittenhouse

Authors: F Hopkinson | David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 201-206

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005186

On the Improvement of Time-Keepers

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1799, in volume 4, pages 26-28

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005078

An Account of Some Experiments on Magnetism, in a Letter to John Page, Esq. at Williamsburg, from Mr. Rittenhouse

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 178-181

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005178

An Account of the Effects of a Stroke of Lightning on a House Furnished with Two Conducters, in a Letter from Messrs. David Rittenhouse and Francis Hopkinson; To Mr. R. Patterson

Authors: David Rittenhouse | Francis Hopkinson

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 122-125

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004859

A Letter from Dr. Rittenhouse, to Mr. Patterson, Relative to a Method of Finding the Sum of the Several Powers of the Sines, &c

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 155-156

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004865

Method of Raising the Common Logarithm of Any Number Immediately

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1799, in volume 4, pages 69-71

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005082

A Description of an Orrery, Executed on a New Plan

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 1-3

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005000

Observations on the Comet of June and July, 1770; With the Elements of Its Motion, and the Trajectory of Its Path, in Two Letters, from David Rittenhouse a. m. to William Smith, D. D. Provost Coll. Philad

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 37-45

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005015

An Account of a Comet, in a Letter to Mr. R. Patterson

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 261

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004877

Astronomical Observations, Communicated by David Rittenhouse. Observations of a Lunar Eclipse, Nov. 2d, 1789, and of the Transit of Mercury over the Sun's Disk. Nov. 5th the Same Year, Made at the University of William and Mary, by the Revd. Dr. James Madison

Authors: David Rittenhouse | James Madison

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 150-154

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004864

Account of Several Houses in Philadelphia, Struck with Lightning, on June 7, 1789

Authors: David Rittenhouse | John Jones

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 119-122

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004858

Calculations of the Transit of Venus over the Sun as It Is to Happen June 3d 1769, in lat 40°. N. Long. 5h West from Greenwich. By D. Rittenhouse, A. M. Communicated June 21st 1768

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 4

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005001

An Easy Method of Deducing the Time of the Sun's Passing the Meridian per Clock, without the Help of the Equation Tables, by Equal Altitudes Taken on Two Succeeding Days. By David Rittenhouse, A. M. Communicated by William Smith, D. D. Provost Coll. Philad

Authors: David Rittenhouse | William Smith

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 47-49

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005017

New Method of Placing a Meridian Mark, in a Letter to the Rev. Dr. Ewing, Provost of the University

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 181-183

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005179

To Determine the True Place of a Planet, in an Elliptical Orbit, Directly from the Mean Anomaly, by Converging Series

Authors: David Rittenhouse

Published in Transactions of the American Philosophical Society, in 1799, in volume 4, pages 21-26

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005077

A New and Curious Theory of Light and Heat; In a Letter from Dr. B. Franklin to David Rittenhouse, Esq

Authors: Benjamin Franklin

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 5-8

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004846

Explanation of an Optical Deception

Authors: D Rittenhouse

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 37-42

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005164

Extract of a Letter from Andrew Ellicott, to David Rittenhouse, Esq. Dated at Pittsburg, November 5th 1787, Containing Observations Made at Lake-Erie, on That Singular Phenomenon, by Seamen Termed Looming

Authors: Andrew Ellicott

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 62-63

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004852

An Easy and Accurate Method of Adjusting the Glasses of Hadley's Quadrant, on Land for the Back-Observation, by Robert Patterson, in a Letter to Dr. David Rittenhouse, President of the Society

Authors: Robert Patterson

Published in Transactions of the American Philosophical Society, in 1799, in volume 4, pages 154-161

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005091

A Letter from J. Madison, Esq. to Dr. Rittenhouse, Esq. Containing Meteorological Observations

Authors: J Madison

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 141-158

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005172

A Thermometrical Journal of the Temperature of the Atmosphere and Sea, on a Voyage to and from Oporto, with Explanatory Observations Thereon, to David Rittenhouse, L. L. D. President of the American Philosophical Society

Authors: William Billings | Jonathan Williams

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 194-202

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004868

Postscript to Mr. Barton's Letter, to Dr. Rittenhouse, of the 17th of March, 1791

Authors: W Barton

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 134-138

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004861

Observations on the Probabilities of the Duration of Human Life, and the Progress of Population, in the United States of America; In a Letter from William Barton, Esq. to David Rittenhouse, L. L. D. President, A. P. S

Authors: William Barton

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 25-62

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004851

An Improvement on Metalic Conductors or Lightening-Rods, in a Letter to Dr. David Rittenhouse, President of the Society, from Robert Patterson of Philadelphia. Honoured with the Magellanic Premium, by an Award, of the Society in December 1792

Authors: Philo Franklin

Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 321-324

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1004880

Apparent Time of the Contacts of the Limbs of the Sun and Venus; With Other Circumstances of Most Note, in the Different European Observations of the Transit, June 3d, 1769

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 12-20

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005012

An Account of the Transit of Venus over the Sun, June 3d, 1769, as Observed at Norriton, in Pennsylvania. By the Committee Appointed for That Observation. Drawn up, and Communicated, in Behalf of the Committee, by Rev. William Smith, D. D

Authors: William Smith | John Lukens | David Rittenhouse | John Sellers

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 8-41

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005003

An Account of the Transit of Mercury over the Sun, Nov 9th, as Observed at Norriton, in Pennsylvania; By the Committee Appointed for That Observation. Drawn up and Communicated, by Direction and in Behalf of the Committee, by William Smith, D. D. Provost Coll. Philad

Authors: William Smith | John Lukens | David Rittenhouse | Owen Biddle

Published in Transactions of the American Philosophical Society, in 1769, in volume 1, pages 50-54

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005018

A Letter from J. Madison, Esq. to D. Rittenhouse, Esq. Containing Experiments and Observations upon What Are Commonly Called the Sweet Springs

Authors: J Madison

Published in Transactions of the American Philosophical Society, in 1786, in volume 2, pages 197-199

Created: 2026-05-30, modified: 2026-05-30

doi:10.2307/1005184

John David Bradley, 1920 - 2004

Authors: David Agassiz

Published in Entomologist's Record and Journal of Variation, in 2004, in volume 116, issue 2, pages 91-92

Created: 2016-09-01, modified: 2016-09-01

California

Authors: David Styer

Published in Madroño, in 2017, in volume 64, issue 4, pages 113

Created: 2024-06-16, modified: 2024-06-16

doi:10.3120/0024-9637-64.4.113

California

Authors: David J Keil

Published in Madroño, in 2018, in volume 65, issue 1, pages 7-9

Created: 2024-06-16, modified: 2024-06-16

doi:10.3120/0024-9637-65.1.7

Byron David Halsted

Authors:

Published in Botanical Gazette, in 1919, in volume 67, issue 2, pages 169-170

Created: 2017-03-14, modified: 2017-03-14

doi:10.1086/332420

A new endemic species of Chicoreus from Savai’l, Samoa

Authors: David Berschauer | David Waller | Stephen Maxwell

Published in The Festivus, in 2022, in volume 54, issue 1, pages 21-28

Created: 2024-10-06, modified: 2024-10-06

doi:10.54173/f54121

A New Cowrie from the Estuaries of Northwestern Australia

Authors: Edward Petuch | David Berschauer | David Waller

Published in The Festivus, in 2019, in volume 51, issue 2, pages 81-87

Created: 2024-10-06, modified: 2024-10-06

doi:10.54173/f512081

Small spheres in fossil bones: blood corpuscles or diagenetic products?

Authors: David M Martill | David M Unwin

Published in Palaeontology, in 1997, in volume 40, issue 3, pages 619-624

Created: 2016-04-23, modified: 2016-04-23

Luvunga monophylla (DC.) Mabb. (Rutaceae): a new species for Queensland

Authors: David G Fell | David J Stanton

Published in Austrobaileya, in 2011, in volume 8, issue 3, pages 431-434

Created: 2020-06-21, modified: 2025-12-17

doi:10.5962/p.299818

Obituary: Alice Faber Tryon (1920–2009)

Authors: Gerald J Gastony | David S Barrington | David S Conant

Published in American Fern Journal, in 2009, in volume 99, pages 231-235

Created: 2017-04-23, modified: 2017-04-23

doi:10.1640/0002-8444-99.4.231

THRIVING UNDER DIFFICULTIES

Authors: David Griffiths

Published in Torreya, in 1901, in volume 1, issue 3, pages 30-32

Created: 2022-12-14, modified: 2022-12-14

Oregon

Authors: Ben Legler | David Giblin

Published in Madroño, in 2017, in volume 64, issue 1, pages 5

Created: 2024-06-16, modified: 2024-06-16

doi:10.3120/0024-9637-64.1.5

Washington

Authors: Ben Legler | David Giblin

Published in Madroño, in 2017, in volume 64, issue 1, pages 6-8

Created: 2024-06-16, modified: 2024-06-16

doi:10.3120/0024-9637-64.1.6

Obituary: Obed David Evans

Authors: Anonymous

Published in Telopea, in 1976, in volume 1, issue 2, pages 87-90

Created: 2019-03-10, modified: 2019-03-10

doi:10.7751/telopea19763201

California

Authors: David Styer | Randall Morgan

Published in Madroño, in 2013, in volume 60, pages 260

Created: 2019-04-08, modified: 2019-04-08

doi:10.3120/0024-9637-60.3.260

David J. Keil

Authors: Jenn Yost

Published in Madroño, in 2014, in volume 61, pages 421-422

Created: 2017-05-28, modified: 2017-05-28

doi:10.3120/0024-9637-61.4.421

David Clark Hilton

Authors:

Published in The Wilson Bulletin, in 1951, in volume 63, issue 3, pages 218

Created: 2016-12-04, modified: 2023-02-16

DAVID PEARCE PENHALLOW

Authors: Walter Deane

Published in Rhodora, in 1911, in volume 13, issue 145, pages 1-4

Created: 2016-07-19, modified: 2023-02-16

NOTEWORTHY COLLECTIONS

Authors: David J Keil

Published in Madroño, in 1990, in volume 37, issue 2, pages 112

Created: 2016-02-15, modified: 2023-02-16

Obituary: Rolla Milton Tryon, Jr. (1916–2001)

Authors: Gerald J Gastony | David S Barrington | David S Conant

Published in American Fern Journal, in 2002, in volume 92, pages 1-9

Created: 2017-04-23, modified: 2017-04-23

doi:10.1640/0002-8444(2002)092[0001:ormtj]2.0.co;2