544.9 C Clark, William Mansfield, 1884- The determination of ion; an elementary treatise on electrode, indicator and supplementary methods, with an indexed bibliography on applications, by W. Mansfield Clark 3d ed. Baltimore, The Williams & Wilkins company, 1928. xvi, 717 p. front., ilus., col. double p1. ports., diagrs. 23 cm. Bibliography: p. 587-671.