A beautiful set of books from 1924.  These five books are the National Health Series.  The titles of the books are as follows: (1) Love and Marriage:  Normal Sex Relations, by Galloway, (2) Personal Hygiene:  The Rules for Right Living, by McLaughlin, (3) Food for Health's Sake:  What to Eat, by Gillett, (4) The Human Machine:  How Your Body Functions, by Howell, and (5) Your Mind and You:  Mental Health, by Pratt.  These books are in good condition and are attractive.