1. Erratum to: Endocrine physiology
2. The Ovary of Eve
3. I shall be using the terms ‘gonad(s)’ and ‘sex gland(s)’ interchangeably, although, strictly speaking, the term ‘gonad’ means an organ producing reproductive cells alone. For an early twentieth-century discussion of such terminological issues, see Lipschütz Alexander, The internal secretions of the sex glands: The problem of the “Puberty Gland” (Cambridge, 1924), 473.