292 BACTERIOLOGICAL EXAMINATION OF WATER. 



rinstitut Pasteur, 1893. C. STERNBERG, " On the value of agglutina- 

 tion for the diagnosis of the B. typhosus," Zeitsch. f. Hygiene, 

 vol. xxxiv., 1900. SCHOFER, " Ueber das verhalten von pathogenen 

 keimen in kleinfiltern," Centralblatt f. Bakt., vol. xiv., 1893. 

 SIROTININ, Zeitsch. f. Hygiene, vol. iv., 1888. SCHEFFLER, Centralblatt 

 f. Bakt., vol. xxviii. p. 199. 



TIEM ANN-GARTNER, u Die chemische und mikroskopisch-bacteriologische 

 Untersuchungen des Wassers," Braunschweig, 1895. TRENKMANN, 

 " On the biology of the comma bacillus," Centralblatt f. Bakt., vol. xiii., 

 1893. TILS, " Bacteriol untersuchung der Freiburger Leitungs 

 wasser," Zeitsch. f. Hygiene, vol. ix., 1890. 



UPPELMANN, "Weitere Beitrage zur biologic der cholera bacillus," 

 Berliner Klinische Wochenschrift, 1893. 



WARD, "Action of light upon bacteria," Proc. Roy. Soc. Loud., 1893. 

 WATHELET, " Bacteriological researches on the dejecta in typhoid 

 fever, Annales de rinstitut Pasteur, 1895. WEISSENFELD, " Ueber 

 hygienische beurtheilung des Wassers," Zeitsch. f. Hygiene, 1900. 

 WITTICH, Centralb. f. Bakt., vol. xxvii., 1900. WEIBEL, "Untersuch- 

 ungen iiber vibrionen," Centralb. f. Bakt., vol. iv., 1888. WOLFFHUGEL, 

 " Wasser versorgung," Handbuch der Hygiene, Leipzig, 1882. WOOD- 

 HEAD and WOOD, " Bacterial efficiency of water niters," Brit. Ned. 

 Journ., January 1898. 



ZIMMERMANN, " Die Bakterien unserer Trink und Nutzwasser," Chemnitz, 

 1890. 



