Note 46 — THE INDIVIDUAL ORGANISM WITH REGARD TO FORM AND METABOLISM (continued 2)
Reading edition
It seems that in some cases (Dinophilus, certain Arthropods) the sexual products are invariably determined as “arrenogennetic” or as “thelygennetic” (Wilson, Journ. Exp. Zool. ii. and iii. 1905–6), whilst in others (Amphibia) the state of maturation or “super”-maturation determines the sex of the future organism (R. Hertwig, Verh. D. Zool. Ges. 1905–7).