Note 234 — Chapter VI · —THE THEORY OF SEXUAL INVERSION.
Reading edition
This explanation of homosexuality has already been tentatively put forth. Thus, Iwan Bloch (Sexual Life of Our Time, ch. xix, Appendix) vaguely suggests a new theory of homosexuality as dependent on chemical influences. Hirschfeld also believes (Die Homosexualität, ch. xx) that the study of the internal secretions is the path to the deepest foundations of inversion.