Tetrabiblos - The Quadripartite Mathematical Thesis - CLAUDIUS PTOLEMY



Definition: [Source Texts of Astrology] Claudius Ptolemy's Tetrabiblos or the Quadripartite Mathematical Thesis is the seminal text of Western Astrology.

It comes down to us in four books, containing a total of 61 sections. The four books are each available in full here on separate pages. Below is an hyper-linked index to the complete work.  [See also: Ptolemy's lexicon for the zodiac signs.]

Book i

01 Introduction
02 That Knowledge by Astronomical Means is Attainable, and How Far
03 That it is also Beneficial
04 Of the Power of the Planets
05 Of Beneficent and Maleficent Planets
06 Of Masculine and Feminine Planets
07 Of Diurnal and Nocturnal Planets
08 Of the Power of the Aspects to the Sun
09 Of the Power of the Fixed Stars
10 Of the Effect of the Seasons and of the Four Angles
11 Of Solstitial, Equinoctial, Solid, and Bicorporeal Signs
12 Of Masculine and Feminine Signs
13 Of the Aspects of the Signs
14 Of Commanding and Obeying Signs
15 Of Signs which Behold each other and Signs of Equal Power
16 Of Disjunct Signs
17 Of the Houses of the Several Planets
18 Of the Triangles
19 Of Exaltations
20 Of the Disposition of Terms
21 According to the Chaldeans
22 Of Places and Degrees
23 Of Faces, Chariots, and the Like
24 Of Applications and Separations and the Other Powers

Book ii

01 Introduction
02 Of the Characteristics of the Inhabitants of the General Climes
03 Of the Familiarities between Countries and the Triplicities and Stars
04 Method of Making Particular Predictions
05 Of the Examination of the Countries Affected
06 Of the Time of the Predicted Events
07 Of the Class of those Affected
08 Of the Quality of the Predicted Event
09 Of the Colours of Eclipses, Comets, and the Like
10 Concerning the New Moon of the Year
11 Of the Nature of the Signs, Part by Part, and their Effect upon the Weather
12 Of the Investigation of Weather in Detail
13 Of the Significance of Atmospheric Signs

Book iii

01 Introduction
02 Of the Degree of the Horoscopic Point
03 The Subdivision of the Science of Nativities
04 Of Parents
05 Of Brothers and Sisters
06 Of Males and Females
07 Of Twins
08 Of Monsters
09 Of Children that are not Reared
10 Of Length of Life
11 Of Bodily Form and Temperament
12 Of Bodily Injuries and Diseases
13 Of the Quality of the Soul
14 Of Diseases of the Soul

Book iv

01 Introduction
02 Of Material Fortune
03 Of the Fortune of Dignity
04 Of the Quality of Action
05 Of Marriage
06 Of Children
07 Of Friends and Enemies
08 Of Foreign Travel
09 Of the Quality of Death
10 Of the Division of Times

Translation placed on the internet by Keld Jensen


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