"Chapter by Pierre Najac, “L’Institut de science sexuelle à Berlin”; includes numerous illustrations from the archives of Magnus Hirschfeld’s Institute for Sexual Science in Berlin, as well as Najac’s eyewitness description of the vaginoplasty surgery performed on Rudolf Z./Dorchen Richter, the second recipient of male-to-female gender confirmation surgery under the auspices of the institute" (Gerald Koskovich).