(Vou. 7 
288 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Ayers, S. H., Johnson, W. T., Jr., and Davis, B. J. (18). Thermal death point 
and final hydrogen ion concentration of streptococci. Jour. Infect. Dis. 23: 
290-300. 1918. 
and Rupp, P. (18). Simultaneous acid and alkali bacterial fermen- 
tation min dextrose and salts of organic acids. bid. 188-216. 1918. 
Besson, A., Ranque, A., and Senez, C. (19). Sur la vie du colibacille en milieu 
liquide glucose. Soc. Biol, Compt. Rend. 82: 76-78. 1919 
y A —— — — —, (199). Sur la vie des microbes dans les 
milieux liquides sucres. 7bid. 107-109. 1919. 
—————, —————, — ——— , (199). Sur la vie du colibacille en milieu 
liquide glucose. Innota des doses de glucose. Ibid. 164-166. 1919. 
Buchanan, R. E. E Life phases in a bacterial culture. Jour. Infect. Dis. 23: 
109-125. 
T J. W. p Studies of the diphtheria bacillus in culture. Jour. Bact. 
4: 379-409. 1919. 
Chesney, A. M. (’16). Latent period in growth of bacteria. Jour. Exp. Med. 24: 
387-419. 1916. 
Clark, W. M. (15). Final hydrogen ion concentration of cultures of Bacillus 
coli. Jour. Biol. Chem. 22: 87-98. 1915. 
, and Lubs, H. A. ('15). Differentiation of bacteria of the colon-aero- 
genes bon by the use of indicators. Jour. Infect. Dis. 17: 160-173. 1915. 
——, (17) e colorimetric determination of hydrogen ion 
PEREI eO and its id in bacteriology. Jour. Bact. 2: 1-34, 1 
136, 191-236. 1917. 
Cohen, B., and Clarks W. M. (19). Growth at different hydrogen ion concen- 
tiation. Ibid. 4: 409-427. 1919. 
Conradi, H., and Krohni. O. (05). Ueber spontane Wachstumshemmung 
der bakterien infolge Selbstvergiftung. Münch. Med. Wochenschr. 37: 1761- 
1764. 1905. 
——————, — — ———, (05?) Ueber die Bedeutung der bakteriellen Hem- 
ittogentoffe für die Physiologie und Pathologie des Darmes. Ibid. 45: 2164- 
2168; 46: 2228-2232. 1905. 
Coplans, M. (07). On some vital properties of milk. Lancet 1907: 1074-1080. 
1907. 
Cullen, G. E., and Chesney, A. M. (18). Production of acid by pneumococci. 
Jour. Exp. Med. 28: 289-296. 1918 
Duggar, B. M. (19). The micro-olrimeter i in the indicator method of hydrogen 
ion determination. Ann. Mo. Bot. Gard. 6: 179-181. 1919. 
Eijkmann (04). Ueber thermolabile Stoffwechselprodukte als Ursache der natür- 
lichen Wachstumshemmung der Mikroorganismen. Centralbl. f. Bakt. I. 
Orig. 37: 436-449. 1904. 
—— — ———, (06). Ueber natürliche Wachstumshemmung der Bakterien. Ibid. 
41: 367-369, 471-474. 1900. 
Fred, E. B., and Loomis, N. E. (17). Influence of hydrogen-ion concentration 
of nad on the reproduction of alfalfa bacteria. Jour. Bact. 2: 629-633. 
1917. 
