books.google.co.uk - This book explores the ways in which scientific ideas about sex differences in the later Middle Ages participated in the broader cultural assumptions about gender. Professor Cadden discusses how medieval natural philosophical theories and medical notions about reproduction and sexual impulses and experiences...http://books.google.co.uk/books/about/The_Meanings_of_Sex_Difference_in_the_Mi.html?id=rhM5qeBua8gC&utm_source=gb-gplus-shareThe Meanings of Sex Difference in the Middle Ages