[Vol. 6, 1919] 



70 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Kober, P. A. ('17). An improved nephelometer-colorimeter. Jour. Biol. Chem. 

 29 : 155-168. f. 1-9. 1917. 



Levy, R. L., and Rowntree, L. G. ('16). A study of the buffer value of the blood. 

 Archiv. Int. Med. 17 : 525-539. 1916. 



, and Marriott, W. McK. ('15). A simple method for de- 



termining variations in the hydrogen-ion concentration of the blood. Ibid. 

 16 : 389-402. 1915. 



Marriott, W. McK. ('16). A method for the determination of the alkali reserve 

 of the blood plasma. Ibid. 17 : 840-851. f. 1-2. 1910. 



Michaelis, L. ('14). Die Wasserstoflfionenkonzentration. 210 pp. 1914. 



Prideaux, E. B. R. ('17). The theory and use of indicators. 375 pp. diagrams 

 1-16. 1917. 



Salm, E. ('06). Studie liber Indikatoren. Zeitschr. f. phys. Chem. 57 : 471-501. 

 f. 1-5. 1906. 



Sorensen, S. P. ('Og-'IO). Etudes enzymatiques II. Sur la mesure et Timport- 



ance de la concentration des ions hydrogfcne dans les reactions enzymatiquen. 

 Lab. Carlsberg, Compt. rend, des Trav. 8 : 1-168. f. 1-1; 396-401. 1909-1910. 



Tizard, H. T. ('10). The color changes of methyl-orange and methyl-red in acid 

 solutions. Jour. Chem. Soc, Trans. 97 s : 2477-2490. 1910. 



Veley, V. H. ('06). Uber die Reaktionen zwischen Sliuren und Methylorange. 

 Zeitschr. f. phys. Chem. 57 : 147-167. f. 1-5. 1906. 



Walpole, G. S. ('10). A method of titrating physiological fluids. Jour. Physiol. 



40 : XXVII-XXIX. f. 1. 1910. 



, C10*). Chart presentations on recent work on indicators. Biochem. 



Jour. 5 : 207-214. f. 1-2. 1910. 



