'Philosophers and scientists on either side of the fence, whether of naturalist or social constructionist persuasion, will find plenty of material to sink their teeth into in Khalidi's delightfully argued and wide-ranging treatment of natural kinds … We can … only commend Khalidi for his valiant attempt at restoring the notion of natural kinds to the central place within philosophy where it belongs.' Georg Theiner, Journal for General Philosophy of Science
Preface; 1. Realism and essentialism about kinds; 2. The naturalness of kinds; 3. Kinds in the special sciences; 4. Kinds in the biological and social sciences; 5. Kinds of natural kinds; 6. Naturalising kinds.