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Observations on the Geology of the United States of North America; With Remarks on the Probable Effects That May Be Produced by the Decomposition of the Different Classes of Rocks on the Nature and Fertility of Soils: Applied to the Different States of the Union, Agreeably to the Accompanying Geological Map

Authors: William Maclure

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 1-91

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

doi:10.2307/1004895

Astronomical Observations, &c. Communicated by Andrew Ellicott, Esq

Authors: Andrew Ellicott

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 93-101

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

doi:10.2307/1004896

Abstracts of Calculations to Ascertain the Longitude of the Capitol, in the City of Washington, from Greenwich Observatory, in England

Authors: William Lambert

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 103-118

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

doi:10.2307/1004897

Investigation of the Figure of the Earth, and of the Gravity in Different Latitudes

Authors: Robert Adrain

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 119-135

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

doi:10.2307/1004898

Memoir on Leaden Cartridges

Authors: William Jones

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 137-145

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

doi:10.2307/1004899

Tables of the Altitudes of Mountains in the States of New York, New Hampshire, and Vermont, Calculated from Barometritrical and Thermometrical Observations, by A. Partridge, Captain of the Corps of Engineers of the United States. Communicated by Col. Jonathan Williams

Authors: A Partridge | Jonathan Williams

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 147-150

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

doi:10.2307/1004900

On the Population and Tumuli of the Aborigines of North America. In a Letter from H. H. Brackenridge, Esq. to Thomas Jefferson

Authors: H H Brackenridge

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 151-159

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

doi:10.2307/1004901

An Account of Some Experiments Made on Crude Platinum, and a New Process for Separating Palladium and Rhodium from That Metal

Authors: Joseph Cloud

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 161-165

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

doi:10.2307/1004902

An Attempt to Ascertain the Fusing Temperature of Metals

Authors: Joseph Cloud

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 167-169

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

doi:10.2307/1004903

An Inquiry into the Causes Why the Metals in a Solid State Appear to Be Specifically Lighter than They Are in the State of Fusion

Authors: Joseph Cloud

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 170-173

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

doi:10.2307/1004904

Observations and Conjectures on the Formation and Nature of the Soil of Kentucky

Authors: J Correa De Serra

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 174-180

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

doi:10.2307/1004905

An Easy Solution of a Useful Problem in Arithmetic

Authors: James Austin | R Patterson | F R Hassler | S Colhoun

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 181-186

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

doi:10.2307/1004906

On the Geological Formation of the Natural Bridge of Virginia

Authors: Francis William Gilmer

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 187-192

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

doi:10.2307/1004907

Analysis of the Blue Iron Earth of New Jersey

Authors: Thomas Cooper

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 193-199

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

doi:10.2307/1004908

On Vanishing Fractions

Authors: Jared Mansfield

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 200-209

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

doi:10.2307/1004909

An Account of Pyrometric Experiments, Made at Newark, New Jersey, in April, 1817

Authors: F R Hassler

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 210-227

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

doi:10.2307/1004910

English Phonology; Or, an Essay towards an Analysis and Description of the Component Sounds of the English Language

Authors: Peter S Duponceau

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 228-264

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

doi:10.2307/1004911

On Fossil Reliquia of Unknown Vegetables in the Coal Strata

Authors: Henry Steinhauer

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 265-297

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

doi:10.2307/1004912

Account of a Large Wen, Successfully Extirpated by John Syng Dorsey, M. D

Authors: John Syng Dorsey

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 298-300

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

doi:10.2307/1004913

An Account of an Improvement Made on the Differential Thermometer of Mr. Leslie. By Elisha De Butts, M. D. Communicated by Dr. B. S. Barton, One of the Vice Presidents of the Society

Authors: Elisha De Butts | B S Barton

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 301-306

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

doi:10.2307/1004914

Description of a Rolling Draw-Gate, as Applied to Water-Mills. Invented and Communicated by Nathan Sellers

Authors: Nathan Sellers

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 307-309

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

doi:10.2307/1004915

Description of an Indian Fort in the Neighbourhood of Lexington, Kentucky, by C. W. Short, M. D. Communicated by Mr. John Vaughan, Oct. 4, 1816

Authors: John Vaughan | Charles W Short

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 310-312

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

doi:10.2307/1004916

Description of an Improved Piston for Steam Engines, without Hemp Packing

Authors: P A Browne

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 313-316

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

doi:10.2307/1004917

On Bleaching

Authors: Thomas Cooper

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 317-324

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

doi:10.2307/1004918

Description and Use of a Simple Appendage to the Reflecting Sector, by Which It Is Rendered Capable of Measuring All Possible Altitudes, on Land, by Reflection from an Artificial Horizon

Authors: Robert Patterson

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 325-332

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

doi:10.2307/1004919

Description and Use of a Very Simple Instrument for Setting up Sun-Dials, and for Many Other Useful Purposes

Authors: Robert Patterson

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 333-339

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

doi:10.2307/1004920

Observations Made at an Early Period, on the Climate of the Country about the River Delware. Collected from the Records of the Swedish Colony, by Nicholas Collin, Rector of the Swede's Church at Philadelphia

Authors: Nicholas Collin

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 340-352

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

doi:10.2307/1004921

Research concerning the Mean Diameter of the Earth

Authors: Robert Adrain

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 353-366

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

doi:10.2307/1004922

An Improvement in the Common Ship-Pump

Authors: Robert Patterson

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 367-370

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

doi:10.2307/1004923

Observations on Those Processes of the Ethmoid Bone Which Originally Form the Sphenoidal Sinuses

Authors: C Wistar

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 371-374

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

doi:10.2307/1004924

An Account of Two Heads Found in the Morass, Called the Big Bone Lick, and Presented to the Society, by Mr. Jefferson

Authors: Caspar Wistar

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 375-380

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

doi:10.2307/1004925

An Account of a Case of Disease, in Which One Side of the Thorax Was at Rest, While the Other Performed the Motions of Respiration in the Usual Way

Authors: Caspar Wistar

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 381-382

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

doi:10.2307/1004926

Descriptions of Several Species of Chondropterigious Fishes, of North America, with Their Varieties

Authors: C A Le Sueur

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 383-394

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

doi:10.2307/1004927

Investigation of a Theorem, Proposed by Dr. Rittenhouse, Respecting the Summation of the Several Powers of the Sines; With Its Application to the Problem of a Pendulum Vibrating in Circular Arcs. By Owen Nulty, Professor of Mathematics in Dickenson College, Pennsylvania. Communicated in a Letter to Dr. R. M. Patterson

Authors: Owen Nulty

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 395-400

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

doi:10.2307/1004928

A Monograph of North American Insects, of the Genus Cicindela

Authors: Thomas Say

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 401-426

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

doi:10.2307/1004929

Description and Rationale of the Operation of a Simple Apparatus, Which May Serve as a Substitute for the Ship Pump, and Which Will Require No Manual Labour Whatever; Being a Supplement to the Paper No. XXIX. on That Subject

Authors: Robert Patterson

Published in Transactions of the American Philosophical Society, in 1818, in volume 1, pages 427-429

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

doi:10.2307/1004930