The recognizable content of Frederick Sommers' original image depicts a fin de siecle woman receiving the attentions of two gentlemen. The subject of this book being menstruation, the mens presence has presumably been deemed unecessary for the cover.
“Menstruation & Menopause: The Physiology and Psychology, the Myth and the Reality,” Covering Photography, accessed February 7, 2025, https://coveringphotography.bc.edu/items/show/6300.