[HUBBARD, L. Ron (1911-1986)]. Pair of Early First Editions on Dianetics, including: Child Dianetics Dianetic Processing for Children. [Wichita, KS]: International Library of Arts and Sciences, [October, 1951]. 4to. 96 pp. Publisher?s staple-bound printed yellow wrappers (wrappers toned, creased, worn, text toned with occasional foxing). Good. And A Key to the Unconscious Symbological Processing. [Phoenix, AZ: Scientific Press, 1952]. 4to. 68 pp. Publisher?s staple-bound printed light blue wrappers (wrappers toned, creased, soiled, previous owner?s ink stamp (?John B. Skupen Jr. / Associate to L. Ron Hubbard??) on the front wrapper, ownership inscription of ?M. A. Cord [?]? on the title-page. Good. These uncommon first editions are instructional guides to early Dianetics practitioners.