Efficient causes of life.

Aristotle, great Greek philosopher, researcher, reasoner, and writer, born at Stagirus in 384 BC, was the son of a physician. He studied under Plato at Athens and taught there (367–347); subsequently he spent three years at the court of a former pupil in Asia Minor. After some time at Mitylene, in 343–342 he was appointed by King Philip of Macedon to be tutor of his teen-aged son Alexander. After Philip’s death in 336, Aristotle became head of his own school (of “Peripatetics”), the Lyceum at Athens. Because of anti-Macedonian feeling there after Alexander’s death in 323, he withdrew to Chalcis in Euboea, where he died in 322.

Nearly all the works Aristotle prepared for publication are lost; the priceless ones extant are lecture-materials, notes, and memoranda (some are spurious). They can be categorized as follows:

I Practical: Nicomachean Ethics; Great Ethics (Magna Moralia); Eudemian Ethics; Politics; Economics (on the good of the family); On Virtues and Vices.
II Logical: Categories; Analytics (Prior and Posterior); Interpretation; Refutations used by Sophists; Topica.
III Physical: Twenty-six works (some suspect) including astronomy, generation and destruction, the senses, memory, sleep, dreams, life, facts about animals, etc.
IV Metaphysics: on being as being.
V Art: Rhetoric and Poetics.
VI Other works including the Constitution of Athens; more works also of doubtful authorship.
VII Fragments of various works such as dialogues on philosophy and literature; and of treatises on rhetoric, politics, and metaphysics.

The Loeb Classical Library edition of Aristotle is in twenty-three volumes.

Inductive zoology.

In History of Animals Aristotle analyzes “differences”—in parts, activities, modes of life, and character—across the animal kingdom, in preparation for establishing their causes, which are the concern of his other zoological works. Over 500 species of animals are considered: shellfish, insects, birds, fish, reptiles, amphibians, and mammals—including human beings.

In Books I–IV, Aristotle gives a comparative survey of internal and external body parts, including tissues and fluids, and of sense faculties and voice. Books V–VI study reproductive methods, breeding habits, and embryogenesis as well as some secondary sex differences. In Books VII–IX, Aristotle examines differences among animals in feeding; in habitat, hibernation, migration; in enmities and sociability; in disposition (including differences related to gender) and intelligence. Here too he describes the human reproductive system, conception, pregnancy, and obstetrics. Book X establishes the female’s contribution to generation.

The Loeb Classical Library edition of History of Animals is in three volumes. A full index to all ten books is included in Volume Three.

Related Volumes:

Aristotle’s biological corpus includes not only History of Animals, but also Parts of Animals, Movement of Animals, Progression of Animals, Generation of Animals, and significant parts of On the Soul and Parva Naturalia. Aristotle’s general methodology—“first we must grasp the differences, then try to discover the causes” (HA 1.6)—is applied to the study of plants by his younger co-worker and heir to his school, Theophrastus: Enquiry into Plants studies differences across the plant kingdom, while De Causis Plantarum studies their causes. In the later ancient world, both Pliny’s Natural History and Aelian’s On the Characteristics of Animals draw significantly on Aristotle’s biological work. The only work by a classical author at all comparable to Aristotle’s treatises on animals is Xenophon’s On Horses (included in Volume VII of the Loeb edition of Xenophon).

Inductive zoology.

In History of Animals Aristotle analyzes “differences”—in parts, activities, modes of life, and character—across the animal kingdom, in preparation for establishing their causes, which are the concern of his other zoological works. Over 500 species of animals are considered: shellfish, insects, birds, fish, reptiles, amphibians, and mammals—including human beings.

In Books I–IV, Aristotle gives a comparative survey of internal and external body parts, including tissues and fluids, and of sense faculties and voice. Books V–VI study reproductive methods, breeding habits, and embryogenesis as well as some secondary sex differences. In Books VII–IX, Aristotle examines differences among animals in feeding; in habitat, hibernation, migration; in enmities and sociability; in disposition (including differences related to gender) and intelligence. Here too he describes the human reproductive system, conception, pregnancy, and obstetrics. Book X establishes the female’s contribution to generation.

The Loeb Classical Library edition of History of Animals is in three volumes. A full index to all ten books is included in Volume Three.

Related Volumes:

Aristotle’s biological corpus includes not only History of Animals, but also Parts of Animals, Movement of Animals, Progression of Animals, Generation of Animals, and significant parts of On the Soul and Parva Naturalia. Aristotle’s general methodology—“first we must grasp the differences, then try to discover the causes” (HA 1.6)—is applied to the study of plants by his younger co-worker and heir to his school, Theophrastus: Enquiry into Plants studies differences across the plant kingdom, while De Causis Plantarum studies their causes. In the later ancient world, both Pliny’s Natural History and Aelian’s On the Characteristics of Animals draw significantly on Aristotle’s biological work. The only work by a classical author at all comparable to Aristotle’s treatises on animals is Xenophon’s On Horses (included in Volume VII of the Loeb edition of Xenophon).

Inductive zoology.

Aristotle, great Greek philosopher, researcher, reasoner, and writer, born at Stagirus in 384 BC, was the son of a physician. He studied under Plato at Athens and taught there (367–347); subsequently he spent three years at the court of a former pupil in Asia Minor. After some time at Mitylene, in 343–342 he was appointed by King Philip of Macedon to be tutor of his teen-aged son Alexander. After Philip’s death in 336, Aristotle became head of his own school (of “Peripatetics”), the Lyceum at Athens. Because of anti-Macedonian feeling there after Alexander’s death in 323, he withdrew to Chalcis in Euboea, where he died in 322.

Nearly all the works Aristotle prepared for publication are lost; the priceless ones extant are lecture-materials, notes, and memoranda (some are spurious). They can be categorized as follows:

I Practical: Nicomachean Ethics; Great Ethics (Magna Moralia); Eudemian Ethics; Politics; Economics (on the good of the family); On Virtues and Vices.
II Logical: Categories; Analytics (Prior and Posterior); Interpretation; Refutations used by Sophists; Topica.
III Physical: Twenty-six works (some suspect) including astronomy, generation and destruction, the senses, memory, sleep, dreams, life, facts about animals, etc.
IV Metaphysics: on being as being.
V Art: Rhetoric and Poetics.
VI Other works including the Constitution of Athens; more works also of doubtful authorship.
VII Fragments of various works such as dialogues on philosophy and literature; and of treatises on rhetoric, politics, and metaphysics.

The Loeb Classical Library edition of Aristotle is in twenty-three volumes.