books.google.com.ph - In a sweeping synthesis of American history, Mary Ryan demonstrates how the meaning of male and female has evolved, changed, and varied over a span of 500 years and across major social and ethnic boundaries. She traces how, at select moments in history, perceptions of sex difference were translated into...http://books.google.com.ph/books/about/Mysteries_of_Sex.html?hl=tl&id=1Zk2AkH6vS0C&q=Jane+Addams&utm_source=gb-gplus-shareMysteries of Sex
