X.xii A CLASSIFIED LIST OF BOOKS 



, An Introduction to Theoretical and Applied Colloid Chemistry, "The World of 



Neglected Dimensions." Translation by Martin H. Fischer. 232 p. New York, 1917. 



, Die Welt der Vernachlassigten Dimensionen. 219 p. Dresden andLeipzig, 1915. 



Philip, J. C, Physical Chemistry, Its Bearing on Biology and Medicine. 326 p. London, 

 1920. 



Taylor, W. W., The Chemistry of Colloids and Some Technical Applications. 3d impres- 

 sion. 328 p. London, 1918. 



van't Hoff, J. H., Lectures on Theoretical and Physical Chemistry. Translated by R. A. 

 Lehfeldt. Part I, Chemical Dynamics. 254 p. Part II, Chemical Statics. 156 p. Part 

 III, Relations Between Properties and Composition. 143 p. London, 1898, 1899, and 1900. 



Washburn, Edward W., An Introduction to the Principles of Physical Chemistry from the 

 Standpoint of Modern Atomistics and Thermodynamics. 2d ed. 516 p. New York, 1921. 



Zsigmondy, Richard, Kolloidchemie. 281 p. Leipzig, 1912. 



Zsigmondy, Richard, Spear, Ellwood B., and Norton, John Foote, The Chemistry of 

 Colloids. [Part I is an English translation of Zsigmondy's Kolloidchemie, translated by 

 Spear. Part II consists of Industrial Colloid Chemistry (by Spear) and a chapter on Col- 

 loidal Chemistry and Sanitation (by Norton).] 288 p. New York, 191 7. 



Soil Science and Climatology 



Cameron, F. K., The Soil Solution, the Nutrient Medium for Plant Growth. 136 p. 

 Easton, Pa., 191 1. 



Clements, F. E., Aeration and Air-content, the Role of Oxygen in Root Activity. Carnegie 

 Inst. Wash. Publ. No. 315. 183 p. 1921. 



Ehrenberg, Paul, Die Bodenkolloide. 563 p. Dresden andLeipzig, 1915. 



Hall, A. D., The Soil, an Introduction to the Scientific Study of the Growth of Crops. 3d 

 ed. 352 p. London, 1920. 



Hann, Julius, Handbuch der Klimatologie. 3 vols. 394, 426 and 713 p. Stuttgart, 

 1 908-1 1. 



, Handbook of Climatology. Part I, General Climatology. Translated from 2d 



Ger. ed., with additional references and notes, by Robert De Courcy Ward. 437 p. New 

 York and London, 1903. 



Hilgard, E. W., Soils, Their Formation, Properties, Composition, and Relations to Climate 

 and Plant Growth. 593 p. New York, 1906. 



Mitscherlich, Eilh. Alfred, Bodenkunde fur Land und Forstwirte. 2teAufL 317 p. Ber- 

 lin, 1913. 



Russell, Edward J., Soil Conditions and Plant Growth. 4th ed. 406 p. London and New 

 York, 192 1. 



Ward, Robert De Courcy, Climate, Considered Especially in Relation to Man. 372 p. 

 New York, 1908. 



Warrington, Robert, Lectures on Some of the Physical Properties of Soil. 231 p. Oxford, 

 1900. 



General Physiology, Physiological Chemistry and Physiological Physics 



Abderhalden, Emil, Handbuch der biochemischen Arbeitsmethoden. 9 vols. Berlin, 

 1910-19. 



, Biochemisches Handlexikon. Vols. 1-7, Berlin, 191 1. Vol. 8, 1913; vol. 9, 1915. 



[Includes very extensive literature references.] 



Bayliss, William Maddock, Principles of General Physiology. 3d ed. 862 p. London 

 and New York, 1920. Includes an extensive bibliography. 



Czapek, Friedrich, Biochemie der Pflanzen. ite Aufl. 2 vols. Jena, 1905. [Includes 

 very extensive citations of the literature.] 2te Aufl. 3 vol., (828 p.). Jena, 1913. [Only 

 first vol. has appeared.] 



Effront, Jean, Enzymes and Their Applications. Translated by Samuel C. Prescott. 

 322 p. New York, 1902. 



