Of Magnitude, or Extension

7:47

Read by Elijah Fisher

Of Velocity

7:07

Read by Elijah Fisher

Of Sound, and Its Velocity

7:52

Read by Elijah Fisher

Of Consonance and Dissonance

6:28

Read by Elijah Fisher

Of Unison and Octaves

8:10

Read by Elijah Fisher

Of Other Consonances

9:14

Read by Cbteddy

Of the Twelve Tones of the Harpsichord

13:19

Read by Cbteddy

Of the Pleasure Derived from Fine Music

5:55

Read by Cbteddy

Compression of the Air

7:23

Read by prajak

Rarefaction and Elasticity of the Air

8:16

Read by prajak

Gravity of the Air

7:01

Read by prajak

Of the Atmosphere, and the Barometer

6:18

Read by Elijah Fisher

Of Air-Guns, and the Compression of Air in Gunpowder

6:43

Read by Elijah Fisher

The Effect Produced by Heat and Cold on All Bodies, and Of, the Pyrometer and T…

5:31

Read by Elijah Fisher

Changes Produced in the Atmosphere by Heat and Cold

7:48

Read by Elijah Fisher

The Cold Felt on High Mountains and at Great Depths Accounted For

7:25

Read by Elijah Fisher

Of Light, and the Systems of Descartes and Newton

6:54

Read by Bonnie de Lyons

Difficulties Attending the System of Emanation

6:36

Read by Bonnie de Lyons

A Different System Respecting the Nature of Rays and of Light Proposed

7:31

Read by Bonnie de Lyons

Of the Propagation of Light

6:42

Read by Bonnie de Lyons

Digression on the Distances of the Heavenly Bodies, and on the Nature of the Su…

6:15

Read by czandra

Elucidations on the Nature of Luminous Bodies, and Their Difference from Opaque…

7:16

Read by Verla Viera

How Opaque Bodies Become Visible Newton's System of the Reflection of Rays Prop…

8:34

Read by Jayjaysil

Examination and Refutation of Newton's System

11:36

Read by Emanuela

A Different Explanation of the Manner in Which Opaque Bodies Illuminated Become…

7:44

Read by Emanuela

Continuation of the Same Subject

8:50

Read by Emanuela

Conclusion: Clearness and Colour of Opaque Bodies Illuminated

9:37

Read by Emanuela

Nature of Colours in Particular

6:28

Read by czandra

Transparency of Bodies Relative to the Transmission of Rays

8:32

Read by Elijah Fisher

Of the Transmission of Rays of Light Through Transparent Mediums, and Their Ref…

8:04

Read by Elijah Fisher

Refraction of Rays of Different Colours

7:14

Read by Elijah Fisher

Of the Azure Colour of the Heavens

8:54

Read by czandra

Of Rays Issuing from a Distant Luminous Point, and of the Visual Angle

6:34

Read by Elijah Fisher

Of the Assistance Which Judgment Lends to Vision

6:43

Read by Elijah Fisher

Explanation of Certain Phenomena Relative to Optics

7:29

Read by Elijah Fisher

Of Shadow

7:16

Read by Elijah Fisher

Of Catoptrics, and the Reflection of Rays from Plain Mirrors

8:24

Read by Elijah Fisher

Reflection of Rays from Convex and Concave Mirrors Burning Mirrors

8:04

Read by Elijah Fisher

Of Dioptrics

8:36

Read by Elijah Fisher

Continuation of Burning — Glasses, and Their Focus

7:12

Read by Elijah Fisher

Of Vision, and the Structure of the Eye

5:24

Read by Elijah Fisher

Continuation Wonders Discoverable in the Structure of the Eye

6:07

Read by Elijah Fisher

Further Continuation Astonishing Difference Between the Eye of an Animal and th…

6:44

Read by Elijah Fisher

Perfections Discoverable in the Structure of the Eye

4:40

Read by Elijah Fisher

Of Gravity, Considered as a General Property of Body

6:58

Read by Elijah Fisher

Continuation of Specific Gravity

6:55

Read by Elijah Fisher

Terms Relative to Gravity and Their True Import

6:29

Read by Elijah Fisher

Reply to Certain Objections to the Erath's Spherical Figure, Derived from Gravi…

6:17

Read by Jayjaysil

True Direction and Action of Gravity Relatively to the Earth

6:52

Read by Verla Viera

Different Action of Gravity with Respect to Certain Countries and Distances fro…

7:57

Read by Verla Viera

Gravity of the Moon

5:33

Read by Verla Viera

Discovery of Universal Gravitation by Newton

9:08

Read by SirRoni

Continuation of the Mutual Attraction of the Heavenly Bodies

9:18

Read by prajak

Different Sentiments of Philosophers Respecting Universal Gravitation the Attra…

7:04

Read by prajak

Power by Which the Heavenly Bodies an Mutually Attracted

4:08

Read by prajak

The Same Subject Continued

6:41

Read by prajak

The Same Subject Continued

6:37

Read by prajak

Motion of the Heavenly Bodies Method of Determining It by the Laws of Universal…

4:56

Read by Cbteddy

System of the Universe

6:40

Read by Cbteddy

The Same Subject Continued

5:29

Read by Cbteddy

Small Irregularities in the Motions of the Planets, Caused by Their Mutual Attr…

5:59

Read by Cbteddy

Description of the Flux and Reflux of the Sea

6:45

Read by Belinda Mc

Different Opinions of Philosophers Respecting the Flux and Reflux of the Sea

6:22

Read by Belinda Mc

Explanation of the Flux and Reflux, from the Attractive Power of the Moon

5:33

Read by Verla Viera

The Same Subject Continued

5:06

Read by Verla Viera

The Same Subject Continued

6:17

Read by Verla Viera

The Same Subject Continued

6:15

Read by Verla Viera

More Particular Account of the Dispute Respecting Universal Gravitation

7:05

Read by Ty Lasky

Nature and Essence of Bodies or Extension, Mobility, and Impenetrability of Body

7:33

Read by ShrimpPhish

Impenetrability of Bodies

5:40

Read by ShrimpPhish

Of the Motion of Bodies, Real and Apparent

8:16

Read by ShrimpPhish

Of Uniform, Accelerated, and Retarded Motion

12:33

Read by SirRoni

Principal Law of Motion and Rest Disputes of Philosophers on the Subject

8:02

Read by jenno

Of the Inertia of Bodies of Powers

7:47

Read by jenno

Changes Which May Take Place in the State of Bodies

8:05

Read by elizabethhousworth

System of the Monads of Wolff

8:09

Read by elizabethhousworth

Origin and Nature of Powers

7:11

Read by Cajucom

The Same Subject Principle of the Least Possible Action

7:16

Read by jenno

On the Question, are There Any Other Species of Powers?

7:40

Read by jenno

Of the Nature of Spirits

5:12

Read by Owlivia

Of the Union Between the Soul and the Body

6:32

Read by Owlivia

Different Systems Relative to This Subject

6:49

Read by Owlivia

Examination of the System of Pre-Established Harmony an Objection to It

7:02

Read by Owlivia

Another Objection

6:32

Read by Owlivia

Of the Liberty of Spirits, and a Reply to Objections Against Liberty

6:40

Read by Owlivia

Tne Same Subject Continued

7:17

Read by Owlivia

Influence of the Liberty of Spirits Upon Events

7:45

Read by Owlivia

Of Events Natural, Supernatural, and Moral

7:03

Read by Owlivia

Of the Question Respecting the Best World Possible; and of the Origin of Evil

8:23

Read by Owlivia

Connexion of the Preceding Considerations with Religion Reply to the Objections…

6:16

Read by Owlivia

The Liberty of Intelligent Beings in Harmony with the Doctrines of the Christia…

5:52

Read by Owlivia

Elucidation Respecting the Nature of Spirits

8:14

Read by Owlivia

The Subject Continued Reflections on the State of Souls After Death

9:03

Read by Owlivia

Considerations on the Action of the Soul Upon the Body, and of the Body Upon th…

8:00

Read by Owlivia

Of the Faculties of the Soul, and of Judgment

8:58

Read by Owlivia

Conviction of the Existence of What We Perceive by the Senses of the Idealists,…

8:27

Read by elizabethhousworth

Refutation of the Idealists

8:22

Read by Constandina Sharpe

The Faculty of Perceiving, Reminiscence, Memory, and Attention Simple and Compo…

7:54

Read by jenno

Division of Ideas into Clear and Obscure, Distinct and Confused of Distraction

7:07

Read by jenno

Of the Abstraction of Notions Notions General and Individual: of Genus and Spec…

8:00

Read by jenno

Of Language; Its Nature, Advantages, and Necessity, in Order to the Communicati…

8:39

Read by Andrew Mauls Byron

Of the Perfections of a Language Judgment and Nature of Propositions, Affirmati…

7:59

Read by Andrew Mauls Byron

Of Syllogisms, and Their Different Forms When the First Proposition is Universal

9:31

Read by MaryAnn

Different Forms of Syllogisms Whose First Proposition is Particular

9:08

Read by MaryAnn

Analysis of Some Syllogisms

7:15

Read by MaryAnn

Different Figures and Modes of Syllogisms

11:03

Read by MaryAnn

Observations and Reflections on the Different Modes of Syllogism

6:53

Read by MaryAnn

Hypothetical Propositions, and Syllogisms Constructed of Them

8:48

Read by SirRoni

Of the Impression of Sensations on the Soul

7:11

Read by jenno

Of the Origin and Permission of Evil, and of Sin

9:30

Read by SirRoni

Of Moral and Physical Evil

6:35

Read by Larry Wilson

Reply to Complaints of the Existence of Physical Evil

6:14

Read by Larry Wilson

The Real Destination of Man Usefulness and Necessity of Adversity

5:16

Read by Larry Wilson

Of True Happiness. Conversion of Sinners. Reply to Objections on the Subject

6:32

Read by Larry Wilson

The True Foundation of Human Knowledge Sources of Truth, and Classes of Informa…

5:29

Read by Larry Wilson