books.google.com - In pocket-sized, coded diaries, an upper-middle-class American woman named Mary Poor recorded with small "x's" the occasions of sexual intercourse with her husband Henry over a twenty-eight-year period. Janet Farrell Brodie introduces this engaging pair early in a book that is certain to be the definitive...http://books.google.com/books/about/Contraception_and_Abortion_in_Nineteenth.html?id=Wbeoi0rGvpkC&utm_source=gb-gplus-shareContraception and Abortion in Nineteenth Century America