Book excerpt: Byler, an Old Order Amish from Middlefield, Ohio, offers an autobiographical medicine diary and recipe book, that's been over 50 years in the making. Here are recipes for general tonics, poultices, plasters, and remedies for specific ills, instructions for making soap, furniture polish, glue, and varnish remover, plus recipes for everything from cherry pie to Rivvel Soup. Illustrations.