In a highly original approach the author presents a general and systematic treatment of relations involving the hydrogen ion concentration of aqueous solutions. Mathematical exactness is developed as far as possible without dependence upon particular theories of ionization. Originally published in 1952. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.