Thornton's Master Memory Course by Thornton Spence Dr. Self Pub., 1957, unstated edition Staple bound in good condition. Text is clean and unmarked, binding tight, tanning of pages due to paper used and age. Cover is tanned otherwise is clean. This is Dr. Thornton's course on memory featuring his amazing secret key to memory. Contains tricks for training your mind, making mental pictures, how to enlarge your memory capacity, names, rules for linking faces and names etc. 48 pages. Powered by eCRATER . List your items fast and easy and manage your active items.