What My Heart Wants To Tell, by Verna Mae Slone. New York: Harper & Row. $ 1.95.

A part of the tenth generation of Slones to live in mountain Kentucky, Verna Mae Slone has recorded her family's heritage in simple but affecting words. While presenting the hardships and pleasures of Appalachian life, this sensitive book preserves the memories of a culture and a tradition. Gone are the days Verna Mae tells about, so this simple memoir is doubly touching -- a record of a way of life of a proud and upright mountain folk.