1. Three Failed Scientists -- pt. I CONSTRUCTING HEREDITY -- 2. Rehabilitating Sexuality: Degeneration versus Development -- 3. Paul Kammerer and Flexible Heredity -- 4. Sex, Race, and Heat Rats: Somatic Induction and the Double Gonad -- 5."Productive" Eugenics: Harnessing the Energies of Development -- pt. II REFORM EUGENICS -- 6. Heredity, Glands, and Human Constitutions -- 7. Tandler's Eugenic Enigmas -- 8. Working Jewish in Vienna -- 9. Asymmetry, Failure, and Flexible Heredity