The Variation of Animals and Plants under DomesticationNote 27 — Chapter XVIII · ON THE ADVANTAGES AND DISADVANTAGES OF CHANGED CONDITIONS OF LIFE: STERILITY FROM VARIOUS CAUSES.Reading editionArt. Brazil, ‘Penny Cyclop.,’ p. 363.◇Copy noteReturn to CHAPTER XVIII. ON THE ADVANTAGES AND DISADVANTAGES OF CHANGED CONDITIONS OF LIFE: STERILITY FROM VARIOUS CAUSES.