I love my small collection of outdated psych textbooks. Most of them are very thick and serious-looking with those gunmetal-colored covers designed to stand up to heavy use, and if I’m lucky they discuss lobotomy, but I love them whether they do or not. I believe this particular set of explanations for male homosexuality—by no means the only one; the authors of these books fall all over themselves trying to account for male homosexuality—comes from Volume Two of The Encyclopedia of Sexual Behavior (“Judaism and Sex” to “Venereal Diseases, The”). Unfortunately I do not have Volume One (“Abortion” to “Jealousy”).