Abbildungen der Seite
PDF
EPUB
[merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors]

II. 80

II. 82

II. 85

II. 278

[ocr errors]

Necessary Hints to those that would be Rich

The Way to make Money Plenty in every Man's
Pocket

[ocr errors]

* Address to the Readers of Poor Richard's Almanac On Government

[merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

. VI. 14

* Proposal for promoting Useful Knowledge among the

British Plantations in America.

1744.

* Organization of a Philosophical Society

An Account of the new-invented Pennsylvania Fire

[merged small][ocr errors][merged small]

VI. 28

VI. 34

[merged small][merged small][ocr errors][ocr errors][merged small][ocr errors][merged small]

Conjecture as to the Cause why Ships in crossing the Atlantic have longer Passages in sailing westward, than in sailing eastward

1747.

*Plain Truth; or Serious Considerations on the pres-
ent State of the City of Philadelphia and Province
of Pennsylvania
Northeast Storms; Origin of Springs in Mountains;

[ocr errors]

petrified Shells in the Appalachian Mountains;
Observations on a Tariff

Experiments on the Culture of Grass

On the Vis Inertia of Matter

Vol. Page.

. VI. 74

[ocr errors]

III. 1

A Conjecture as to the Cause of the Heat of the Blood in Health, and of the Cold and Hot Fits of some Fevers

VI. 79

VI. 83

VI. 87

[ocr errors]

VI. 97

First Letter to Peter Collinson on the Subject of Electricity; Wonderful Effect of Points; Positive and Negative Electricity

Observations on the Leyden Bottle, with Experiments

1748.

Advice to a Young Tradesman

Further Experiments on Electricity

[ocr errors]

V. 181

V. 189

[ocr errors][merged small][ocr errors][merged small]

Observations and Suppositions towards forming a new Hypothesis for explaining the several Phenomena of Thunder-gusts

1749.

* Proposals relating to the Education of Youth in Penn

[merged small][ocr errors][ocr errors]
[merged small][ocr errors][merged small][ocr errors][merged small][ocr errors][merged small][ocr errors][merged small]

Sketch of an English School, for the Consideration of the Trustees of the Philadelphia Academy Magical Square of Squares

Magical Circle

1750.

Electrical Experiments; Effect of Lightning on the
Needle of Compasses explained

Opinions and Conjectures concerning the Properties

and Effects of the Electrical Matter, and the

[ocr errors][merged small]

Means of preserving Buildings and Ships from
Lightning

Additional Experiments in Electricity

[ocr errors]

Vol. Page.

V. 227

[ocr errors]

V. 253

V. 255

VI. 105

[ocr errors]
[merged small][ocr errors]
[merged small][ocr errors]

Reasons why Northeast Storms begin at the South Electrical Papers and Experiments

Inquiries respecting the Mode of planting Hedges

1751.

. VI. 111

Observations concerning the Increase of Mankind, and

the peopling of Countries

Unlimited Nature of Electric Force

Queries and Answers on the Properties of Electricity.
Remarks on Husbandry

1752.

II. 311

V. 258

[ocr errors]
[merged small][merged small][ocr errors]

Observations on Electricity, and the Sources and Properties of Lightning

[ocr errors][ocr errors]

Probable Causes of the different Attractions and Repulsions of two Electrified Globes

Reasons for supposing that a Glass Globe charges positively and a Sulphur Globe negatively

Supposition of a Region of Electric Fire above the

Atmosphere; Theorem concerning Light.

[merged small][merged small][ocr errors]
[merged small][ocr errors][merged small][merged small][ocr errors][ocr errors][merged small][ocr errors][merged small][ocr errors][merged small]
[ocr errors][ocr errors][merged small][merged small][ocr errors]

Remarks on Mr. Colden's Theory of Light Physical and Meteorological Observations, Conjectures, and Suppositions

[blocks in formation]

On the Motion of the Electrical Fluid in Metals
Concerning the Light emitted by Salt Water

Water-Spouts and Whirlwinds Compared
Transit of Mercury in 1753.

[merged small][merged small][merged small][ocr errors][ocr errors][merged small][merged small][merged small][ocr errors][merged small][ocr errors][merged small][ocr errors][merged small][ocr errors]
[merged small][merged small][merged small][ocr errors][merged small][merged small][ocr errors][merged small]

Papers relating to a Plan of Union of the Colonies, adopted by Commissioners assembled at Albany

Three Letters to Governor Shirley

[ocr errors]

Plan for settling two Western Colonies in North Amer

III. 22

III. 56

[ocr errors]

III. 69

[ocr errors]

V. 340

ica, with Reasons for the Plan . Additional Proofs of the Positive and Negative State of Electricity in the Clouds

1755.

* An Act for the better Ordering and Regulating such as are willing and desirous to be united for Military Purposes in Pennsylvania

*Dialogue respecting the State of Affairs in Pennsyl

[merged small][ocr errors]

Experiments in Electricity, with Explanations

Turkey killed by Electricity; Effects on the Operator
Miscellaneous Remarks on Electricity and Lightning.
Pointed Rods; Effect of Lightning on the Church at
Newbury

Account of a Whirlwind in Maryland

1756.

1757.

* Plan for saving One Hundred Thousand Pounds

III. 78

[ocr errors]
[ocr errors][merged small]
[ocr errors][merged small][merged small][merged small][ocr errors][ocr errors][merged small]

The Way to Wealth; being a Summary of the Maxims and Proverbs in Poor Richard's Almanac

+ Observations on Mayz, or Indian Corn

Report of the Committee of Aggrievances of the As

[merged small][ocr errors]

On the Effects of Electricity in Paralytic Cases
On Cold produced by Evaporation

1758.

Electrical Apparatus; Description of a Battery
On the different Strata of the Earth.

[merged small][merged small][ocr errors][merged small][ocr errors][ocr errors][merged small][merged small][ocr errors][merged small]
[ocr errors][ocr errors][merged small][merged small][merged small][merged small][ocr errors][merged small]

1759.

Historical Review of the Constitution and Government

of Pennsylvania

On the Electricity of the Tourmalin

1760.

† Precautions to be used by those who are about to undertake a Sea Voyage

Vol. Page.

III. 107

[ocr errors][merged small]
[ocr errors]

II. 106

The Interest of Great Britain Considered, with Regard to her Colonies and the Acquisitions of Canada and Guadaloupe

On the Saltness of Sea Water

On the Northeast Storms in America

IV. 1 . VI. 218

Effect of Air on the Barometer, and the Benefits de

rived from the Study of Insects

On the Bristol Waters, and the Tide in Rivers

1761.

Remarks on the Effects of Lightning

Tides in Rivers

Salt Water rendered Fresh by Distillation

[ocr errors][merged small][merged small][merged small][ocr errors][ocr errors][merged small][merged small][ocr errors][merged small][ocr errors][merged small][merged small]

Tendency of Rivers to the Sea; Effect of the Sun's

Rays on Cloths of different Colors

[merged small][ocr errors]

Remarks on Judge Foster's Argument in Favor of the
Right of Impressing Seamen

[ocr errors]

On Electrical Attraction and Repulsion, and various
Properties of Electricity

[ocr errors]

Concerning the Leyden Bottle, and Electrical Experiments on Amber

+ Best Method of Securing a Powder Magazine from

[merged small][ocr errors][merged small][merged small]
[merged small][merged small][ocr errors][merged small][ocr errors]

* Method of Securing Houses from the Effects of Lightning

[ocr errors][merged small][merged small][merged small][ocr errors]

A curious Instance of the Effect of Oil on Water

. VI. 250

. VI. 253

VI. 245

[ocr errors]

On Fire

« ZurückWeiter »