Natural arithmetic, number theory and geometry are the basis of all natural phenomena. Mr. Iverson has devoted 40 years of his life to develop the principles of QA. This is system will play a major part in the New Sciences. It is based on ancient arithmetic and wholistic principles. Parts of this edition are quite different from that which is found in earlier writings on this subject. 8.5" X 11" 94 pages. illustrated. Downloadable PDF file.