1. In the beginning, there was George. -- 2. How do you get a George? -- 3. George's ancient ancestry -- 4. Ancient theories of sex -- 5. The genesis of genetics -- 6. What did they see and when did they see it? -- 7. The early calico papers -- 8. Twentieth-century theories of sex -- 9. The late calico papers -- 10. The cat is out of the bag.