Hydrogen Ion Concentration: its Significance in the Biological Sciences and Methods for its Determinations Potentiometric Titrations: a Theoretical and Practical Treatise Les ions d'hydrogène: signification, mésure, applications, données numériques

Abstract

(1) OF recent years the application of potentiometric methods to the determination of conditions of equilibria in aqueous solutions as well as to quantitative analysis has assumed proportions of no inconsiderable magnitude, and has thus created a demand for text-books on the subjects. To English readers the appearance of the second edition in English of Michaelis's well known volume will prove a welcome addition to the textbooks, few in number, which are universally appreciated. It is unfortunate that in this edition the erroneous calculations of Ghosh, pp. 117–120, on the conductivity of strong electrolytes, have not been eliminated or replaced by those of Milner and Debye and Hfickel. The book is specially valuable, as it is the only one of which the reviewer is aware in which the various types of electrification which can be produced at interfaces are described and discussed. In biology, at least, phase boundary membrane and electrokinetic potentials appear to be of the greatest significance.

Hydrogen Ion Concentration: its Significance in the Biological Sciences and Methods for its Determinations.

By Prof. Leonor Michaelis Principles of the Theory Dr. William A. Perlzweig. Pp. xiv + 299. (Baltimore, Md.: Williams and Wilkins Co.; London: Baillière, Tindall and Cox, 1926.) 22s. 6d. net.

Potentiometric Titrations: a Theoretical and Practical Treatise.

By Dr. I. M. Kolthoff Dr. N. Howell Furman. Pp. xii + 345. (New York: J. Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1926.) 22s. 6d. net.

Les ions d'hydrogène: signification, mésure, applications, données numériques.

Par W. Kopaczewski. Pp. ix + 322. (Paris: Gauthier-Villars et Cie, 1926.) 70 francs.