Preface: "Gregor Mendel, the first geneticist"
Mendel was not a geneticist ahead of his time
Mendel was a brilliant experimentalist of his time
Speculating about heredity
The path to genetics
The reification of the "lonely genius"
Mendel's great defender
Chromosomes, "factors" and genes
"Mendelian" eugenics
Geneticists' attitudes towards "Mendelian" eugenics
Mendelian genetics and the Nazi racial hygiene
Conclusions: Emending the teaching of school genetics.