Topics discussed include Aristotle"s semantics, individuation, essentialism, causation, and being. Contents: The Aporematic Approach to Primary Being in Metaphysics Z; Aristotle"s Semantics and a Puzzle Concerning Change; Aristotle and Individuation; Singular Statements and Essentialism in Aristotle; What is Aristotle"s Theory of Essence?; Aristotle on the Proximate Efficient Cause of Action; Causes as Necessary Conditions: Aristotle, Alexander of Aphrodisias and J.L. Mackie.