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Observations to Determine the Magnetic Dip at Various Places in Ohio and Michigan. By Elias Loomis Professor of Mathematics and Natural Philosophy in Western Reserve College. In a Letter to Sears C. Walker, Esq., M. A. P. S

Authors: Elias Loomis

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 1-6

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005292

Letter from the Rev. Charles Gutzlaff to John Vaughan, Esq., on the Chinese System of Writing

Authors: Charles Gutzlaff

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 7-9

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005293

On the Extrication of the Alkalifiable Metals, Barium, Strontium, and Calcium

Authors: Robert Hare

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 31-41

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005295

Astronomical Observations Made at Hudson Observatory, Latitude 41 degrees 14 minutes 37 seconds North, and Longitude 5 hours. 25 minutes. 42 seconds. West; With Some Account of the Building and Instruments

Authors: Elias Loomis

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 43-51

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005296

Description of an Apparatus for Deflagrating Carburets, Phosphurets, or Cyanides, in Vacuo or in an Atmosphere of Hydrogen, with an Account of Some Results Obtained by These and by Other Means; Especially the Isolation of Calcium

Authors: Robert Hare

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 53-57

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005297

Upon a New Compound of the Deuto-Chloride of Platinum, Nitric Oxide, and Chloro-Hydric Acid

Authors: Henry D Rogers | Martin H Boyè

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 59-66

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005298

On the Longitude of Several Places in the United States, as Deduced from the Observations of the Solar Eclipse of September 18th, 1838

Authors: E Otis Kendall

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 67-72

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005299

On the Patella Amœna of Say

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 73-74

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005300

Observations of the Magnetic Intensity at Twenty-One Stations in Europe

Authors: A D Bache

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 75-100

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005301

Additional Observations of the Magnetic Dip in the United States

Authors: Elias Loomis

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 101-111

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005302

On a New Principle in Regard to the Power of Fluids in Motion to Produce Rupture of the Vessels Which Contain Them; And on the Distinction between Accumulative and Instantaneous Pressure

Authors: Charles Bonnycastle

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 113-123

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005303

On the Storm Which Was Experienced throughout the United States about the 20th of December, 1836

Authors: Elias Loomis

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 125-163

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005304

Observations on Nebulæ with a Fourteen Feet Reflector, Made by H. L. Smith and E. P. Mason, during the Year 1839

Authors: E P Mason

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 165-213

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005305

Engraving and Description of an Apparatus, and Process, for the Rapid Congelation of Water, by the Explosive Evolution of Ethereal Vapour, Consequent to the Combined Influence of Rarefaction and the Absorbing Power of Sulphuric Acid

Authors: Robert Hare

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 215-216

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005306

On the Insufficiency of Taylor's Theorem as Commonly Investigated; With Objections to the Demonstrations of Poisson and Cauchy, and the Assumed Generalization of Mr. Peacock; To Which Are Added a New Investigation and Remarks on the Development and Continuity of Functions

Authors: Charles Bonnycastle

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 217-250

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005307

Notice of the Oolitic Formation in America, with Descriptions of Some of Its Organic Remains

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 251-260

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005308

Observations to Determine the Horizontal Magnetic Intensity and Dip at Louisville, Kentucky, and at Cincinnati, Ohio

Authors: John Locke

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 261-264

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005309

Observations upon the Meteors of August

Authors: C G Forshey

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 265-275

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005310

On the Change Effected in the Nitrates of Potash and Soda by the Limited Application of Heat, with the View of Obtaining Pure Oxygen, by Which They Are Only Partially Convertible into Hypo-Nitrites: Also on a Liquid and a Gaseous Ethereal Compound, Resulting from the Reaction of Nascent Hypo-Nitrous Acid with the Elements of Alcohol

Authors: Robert Hare

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 277-281

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005311

Descriptions of New Species and Genera of Plants in the Natural Order of the Compositæ, Collected in a Tour across the Continent to the Pacific, a Residence in Oregon, and a Visit to the Sandwich Islands and Upper California, during the Years 1834 and 1835

Authors: Thomas Nuttall

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 283-453

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005312

Description of Nineteen New Species of Colimacea

Authors: Isaac Lea

Published in Transactions of the American Philosophical Society, in 1841, in volume 7, pages 455-465

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005313