| Introduction to Buido Bonatti by Robert Hand |
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| Introduction to the Liber Astronomiae Contained in the 1491 Edition of Erhard Ratdolt |
ii |
| Translator's Preface by Robert Zoller |
v |
| Latinized Forms of Arabic Names that Appear in Bonatti |
xi |
| Liber Astronomiae of Guido Bonatti |
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| First Tractate |
1 |
| Chapter I. Showing the Utility of Astronomiy in General |
1 |
| Chapter II. That the Stars Imprint[Their Influences] on Inferior Bodies and that the Mutations Which Happen in This World Happen by the Motion of the Stars |
2 |
| Chapter III. In What Way the Science of the Judgments of the Stars is Discovered and How it Is that It Is Able to be Excused |
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| Chapter IV. Against Those Who Say that the Science of the Stars Is not Able to be Known By Anyone |
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| Chapter V. Against Those Who Say That the Stars Do Not Have Anything to Signify Concerning Generation and Corruption nor Anything Which Happens Concerning These Things on This Side of the Moon |
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| Chapter VI. Against Those Who Say that The Planets Have Signification Concerning Universal Things Only |
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| Chapter VII. Against Those Who Say that the Stars Signify Only Two Things: The Necessary And the Impossible, but not the Possible |
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| Chapter VIII. Against Those Who Contradict The Judgments of Astronomy and Who Condemn It, Not Knowing Its Dignity, because It Is Not Lucrative |
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| Chapter IX. Against Those Who Have Said that the Science of the Stars Is not Useful but rather Damned Because It Induces Sorrow and Anxiety in Those Who Foresee the Future, whence They suffer from the Causes before the Impediment Happens to Them |
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| Chapter X. Against Those Who Say That the Judgments of the Stars Are of No Value, nor Elections, Saying that It Is Able to be So Elected for and Enemy as for Him for Whom It Is Elected |
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| Chapter XI. Against Those Who Say Universally that There Is no Astrology; and the Demonstration of Its Existence and Nature |
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| Chapter XII. What Astronomy Is: Namely the Practical Part |
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| Chapter XIII. That this Science Should Not Be Condemned Since the Holy Fathers Used It |
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| Chapter XIV. For the Purpose of Demonstrating that Astronomy is an Art and One of the Four Mathematics, indeed the Doctrinal Science |
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| Second Tractate - Part 1...On the Division of the Orb of the Signs and their Being and How They Are Ordained and Disposed and Why There Are only Twelve, Neither More nor Less, and Why They Are Named with Their Names, and the Things Related to These |
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| Chapter XV. On the Division of the Orb of the Signs and That The Signs Are Only Twelve: Neither More nor Less |
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| Chapter XVI. How the Signs Act on the Elements, and on Which Elements Each of the Signs Act |
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| Chapter XVII. Why the Elements are so Disposed and Ordered |
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| Chapter XVIII. For the Demonstration that the Elements Are Only Four, Neither More nor Less |
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| Chapter XIX. Why the Signs Were so Ordered or Disposed |
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| Chapter XX. Why the Enumeration of the Signs Begins from Aries and not from Some Other Sign |
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| Chapter XXI. Why the Signs Were Named with These Names |
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| Second Tractate - Part 2...On the Essential Being of the Circle |
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| Chapter XXII. On the Division of the Orb of the Signs into Twelve Signs and of Each Sign into Thirty Degrees and of Each Degree into Sixty Minutes and of Each Minute into Sixty Seconds |
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| Chapter XXIII. For Showing What Signs are Northern and What Southern |
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| Chapter XXIV. Which Signs are of Direct Ascension and Which are of Crooked Ascension |
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| Chapter XXV. On the Order of the Circles of the Seven Planets and Their Disposition and Courses and in What Times They Complete Their Courses |
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| Chapter XXVI. The Powers which the Planets have in the Signs |
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| Chapter XXVII. On the Houses of the Planets |
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| Chapter XXVIII. On the Detriments of the Planets |
33 |
| Chapter XXIX. On the Exaltations of the Planets |
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| Chapter XXX. Why Aries is the Exaltation of the Sun and Libra is its Descension and why the Other Signs are the Exaltations of the Other Planets |
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| Chapter XXXI. On the Fall or Descension of the Planets |
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| Chapter XXXII. On the Four Triplicities of the Seven Planets |
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| ..............On the First Triplicity - Aries, Leo, Sagittarius |
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| ..............On the Second Triplicity - Taurus, Virgo, Capricorn |
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| ..............On the Third Triplicity - Gemini, Libra, Aquarius |
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| ..............On the Fourth Triplicity - Cancer, Scorpio, Pisces |
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| Chapter XXXIII. On the Signs: Moveable, Fixed and Common |
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| Chapter XXXIV. On the Aspects of the Planets |
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| Chapter XXXV. On the Five Terms of the Planets Other than the Luminaries |
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| Chapter XXXVI. When Term is Preferred to Triplicity and Triplicity is Preferred to Term |
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| Chapter XXXVII. On the Direction Which Happens by the Lords of the Terms |
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| Chapter XXXVIII. On the Faces of the Signs |
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| Chapter XXXIX. For Finding Any Degree of Any Sign, Whose Face It Is |
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| Chapter XL. Concerning the Fortitudes of Any Planets in Each of his Dignities |
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| Chapter XLI. Which Signs Are Called Rational, and Which Have Beautiful Voices, and Which Are Domestic, and Which Have Wings, And Which Are Four Footed |
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| Chapter XLII. What Parts of the Body Each Of the Signs Are Said to Have and What Signification in Each Member, and Which Manners of Men, and What They Signify of Seeds, Regions, and the Like |
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| ..............On Aries |
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| ..............On Taurus |
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| ..............On Gemini |
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| ..............On Cancer |
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| ..............On Leo |
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| ..............On Virgo |
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| ..............On Libra |
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| ..............On Scorpio |
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| ..............On Sagittarius |
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| ..............On Capricorn |
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| ..............On Aquarius |
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| ..............On Pisces |
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| Chapter XLIII. Which Part of the Body Each Planet Signifies in Each Sign |
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| Chapter XLIV. On the Degrees Masculine and Feminine in Each Sign |
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| Chapter XLV. On the Degrees Lucid, Dark Smokey, and Void |
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| Chapter XLVI. On the Puteal Degrees |
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| Chapter XLVII. On the Azemene Degrees |
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| Chapter XLVIII. On the Degrees Which Increase Fortune |
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| Chapter XLIX. On the Degrees of Equal Power and Those Conforming in Virtue |
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| Second Tractate - Part 3...On the Nature of the Accidental Circle |
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| Chapter L. On the Division of the Circle by House |
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| Chapter LI. On the Division of the Quarters of the Circle |
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| Chapter LII. Which Half Is Called Ascending or Descending and Which Part Is Called Right or Left |
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| Chapter LIII. On the Angular, Cadent and Succedent Houses |
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| Chapter LIV. On the Significations of the Twelve Houses |
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| ..............On the First House |
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| ..............On the Second House |
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| ..............On the Third House |
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| ..............On the Fourth House |
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| ..............On the Fifth House |
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| ..............On the Sixth House |
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| ..............On the Seventh House |
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| ..............On the Eighth House |
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| ..............On the Ninth House |
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| ..............On the Tenth House |
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| ..............On the Eleventh House |
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| ..............On the Twelfth House |
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| ..............[Summary Comments] |
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| Chapter LV. Concerning the Significations of the Twelve Houses in the Contrary Direction [Namely] the Progress of the Aforesaid |
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| ..............First Concerning the Twelfth House |
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| ..............On the Eleventh House and its Lord |
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| ..............On the Tenth House and its Lord |
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| ..............On the Ninth House and its Lord |
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| ..............On the Eighth House and its Lord |
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| ..............On the Seventh House and its Lord |
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| ..............On the Sixth House and its Lord |
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| ..............On the Fifth House and its Lord |
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| ..............On the Fourth House and its Lord |
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| ..............On the Third House and its Lord |
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| ..............On the Second House and its Lord |
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| ..............On the First House and its Lord |
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| ..............Concerning the Ease of Discovering the Signification of Each House |
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| Chapter LVI. On the Numbering of the Houses and Why They Begin from the First and Proceed towards the Fourth and from the Fourth to the Seventh and from the Seventh to the Tenth and from the Tenth to the First |
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| Chapter LVII. Which Houses Are Strong, Which Are Stronger, Which Are Weak Which Are Weaker, and Which Mediocre |
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| Chapter LVIII. That the Planets Go Against the Firmament, i.e., Against the First Motion |
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| Chapter LIX. On the Colors Which the Houses Signify |
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| Chapter LX. In What Houses the Planets Rejoice |
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| Chapter LXI. On the Significations of the Houses or of the Angles and Succedents, and of the Lords of the Angles, Succedents and of the Cadents |
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| Chapter LXII. On the Signification of the Lords of the Angles [in] the Angles |
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| ..............First, Concerning the Lord of the First in the First |
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| ..............On the Lord of the Tenth in the Tenth |
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| ..............On the Lord of the Seventh in the Seventh |
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| ..............On the Lord of the Fourth in the Fourth |
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| ..............On the Lord of the Fourth in the Tenth |
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| ..............On the Lord of the Fourth in the Seventh |
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| ..............On the Signification of the Lords of the Succedent [Houses] in Succedent [Houses] |
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| ..............On the Signification of the Lords of the Cadent [Houses] in Cadent [Houses] |
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| Chapter LXIII. On Finding the Significator of the Thing Sought |
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| Chapter LXIV. On Accidental Powers |
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| Third Tractate...Introduction to the Third Tractatus of Bonatti's Liber Astronomiae by Robert Hand |
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| Reference to the Verb Iungo |
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| I.... Basice Terms of Aspect Formation |
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| II... Different Kinds of Joining |
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| III.. Different Types of the Blocking of the Joining of Planets |
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| The Third Tractatus Begins.Concerning the Natures of the Seven Planets, What Is Proper to Them, and What Each Signifies about Any Matter Whatever According to its own Condition, and According to Their Own Natures, and What They Impress upon Inferiors According to the Diversity of the Qualities of Their Own Motions |
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| Chapter LXV. Concerning Saturn and What He Signifies |
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| ..............................About the Complexion of Saturn with Jupiter and Other Planets |
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| Chapter LXVI. Concerning Jupiter and What He Signifies |
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| ..............................Concerning Jupiter's Complexion with Saturn and the Other Planets |
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| Chapter LXVII. Concerning Mars, What He Signifies |
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| ..............................Concerning Mars' Complexion with Saturn and the Other Planets |
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| ..............................Concerning the Significations of Mars When He Is the Only Significator |
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| ..............................Concerning the Complexion of Mars with Saturn |
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| Chapter LXVIII. Concerning the Sun and What He Signifies |
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| .............................. Concerning the Signification of the Sun with Saturn and Other Planets |
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| Chapter LXIX. Concerning Venus, What She Signifies |
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| .............................. Concerning the Complexion of Venus with Saturn and Other Planets |
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| Chapter LXX. Concerning Mercury and What He Signifies |
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| .............................. Concerning the Complexion of Mercury With Saturn and the Other Planets |
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| .............................. Concerning Mercury When He is Made Fortunate |
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| Chapter LXXI. Concerning the Moon and What She Signifies |
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| .............................. Concerning the Complexion of the Moon with Saturn and the Other Planets |
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| .............................. Concerning the Forms Which the Moon Signifies |
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| .............................. Concerning the Signification of the Moon in the Square Aspect of the Sun |
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| .............................. Concerning the Signification of the Moon from the Conjunction to the Half of Her Light |
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| .............................. [Summary of Planetary Significations] |
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| Chapter LXXII. Concerning the Head and Tail of the Dragon and What They Signify |
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| Chapter LXXIII. What Each of the Planets Causes in the Conception of Children |
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| Chapter LXXIV. In What Manner the Life of the Native Is Disposed According to the Years of Rearing of Each Planet |
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| Chapter LXXV. Which Days and Which Nights Each Planet Has and Why Each Is Denominated by That Planet, and Concerning the Unequal Hours, and Concerning the Masculine and Feminine Hours |
132 |
| .............................. Concerning the Hours of the Night, Equal and Unequal |
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| .............................. Concerning Masculine and Feminine Hours |
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| Chapter LXXVI. Concerning the Forms or Figures Which the Signs Give to Natives |
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| Chapter LXXVII. Concerning the Different Accidents which Befall Men |
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| Third Tractate - Part 2 Concerning These Things Which Befall the Planets by Themselves and Which Happen to One Planet Because of Another |
137 |
| Chapter LXXVIII. Concerning These Things That Happen to Planets by Themselves |
137 |
| Chapter LXXIX. Concerning When Planets are Northern and When Southern |
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| Chapter LXXX. Concerning Those Things Which Happen to Planets Mutually, Namely, to One of Them from the Other |
141 |
| .............................. [More] Concerning Almuguea |
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| .............................. Concerning the Almuguea of the Other Planets |
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| Chapter LXXXI. Concerning the Alitifal of the Planets |
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| Chapter LXXXII. When Planets Are Called Oriental and When Occidental |
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| Chapter LXXXIII. Concerning the Two Inferior Planets, When They Are Oriental and When They Are Occidental |
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| .............................. [Conclusions from the Last Group of Chapters] |
146 |
| Chapter LXXXIV. Concerning the Dustoria or Hayz of the Plantes |
147 |
| Chapter LXXXV. Concerning the Three Superior Planets from the Place Where They Appear from under the Sun's Rays |
148 |
| .............................. Concerning Venus and Mercury When They Are Separated from the Sun |
149 |
| Chapter LXXXVI. Concerning the Conjunction of the Planets According to Latitude |
149 |
| Chapter LXXXVII. Concerning the Voiding of the Course of the Planets |
150 |
| Chapter LXXXVIII. Concerning the Transfer of the Nature of the Planets |
150 |
| Chapter LXXXIX. Concerning the Return of the Light of the Planets and its Abscission |
152 |
| Chapter XC. Concerning the Prohibition of Conjunction, and Why Sometimes Matters Are Not Perfected |
153 |
| ..............................[On the Domination of Virtue, or Reception] |
154 |
| Chapter XCI. Concerning the Return of Virtue When a Planet Gives Back to That Planet Which Has Given to It |
155 |
| Chapter XCII. Concerning the Refrenation of the Planets |
156 |
| Chapter XCIII. Concerning the Contrariety of the Planets |
157 |
| Chapter XCIV. Concerning the Frustration of the Conjunction of the Planets |
157 |
| Chapter XCV. Concerning the Abscission of the Light of One Planet by Another |
159 |
| Chapter XCVI. In Which Places Planets Become Strong, and in Which Weak, and in Which They Become Fortunate and in Which Unfortunate |
160 |
| Chapter XCVII. When and in Which Places Planets Become Weak |
161 |
| Chapter XCVIII. Concerning the Besieging of Planets and Signs |
162 |
| Chapter XCIX. How One Planet Loves Another and How It Is Loved by Another, and How They Have Hatred for Each Other |
163 |
| Chapter C. Concerning the Friendship of the Planets |
164 |
| Appendix On the Various Kinds of Reception |
165 |
| Footnotes |
168 |
| Index |
223 |