This is a truly one of the finer books on a key area of married life to be published in recent years. Dr. George begins with a thorough and objectively scientific analysis of the merits of the theory of the regular rhythm of fertile and sterile days in a woman's monthly cycle connected with the propagation of the human species. He points out the danger conception connected with this method of ordering married life explaining how it violate one's conscience or the natural law. But in the end the book becomes a forceful witness to the advantages to be found in the natural pattern of married life intended by the . Without leaning on ecclesiastical documentation, Dr. George makes his case patently clear. Diagrams illustrate the clinical sections and help clarify the detailed instructions here intended for those immediately concerned with the understanding of this natural means of ordering contraception. While the book does describe various other means of contraception, it is surprising that it does not touch on the most recent -- those pills takes orally. The last third of the book is as fine a treatment on the primary and secondary purposes of marriage as is available. This is a marriage manual for husbands and wives which will be understood and appreciated. priest-confessors, and doctors should also consider it required reading.