DRAP RE MANN EE R ETES D SORTE TE

ND Led ÆrSR nr rar Qu EL ntm ec "2e 2 mp 2 > ee TU)

ER 88 en FU

GREËR, NOBLE, NYHAN et NEIL. — Significance of lac-

tose fermenting organisms not belonging' to B. coli group ; mediums and methods. Journal Inf. Dis. p. 556 à 567, juin 1928

WinsLow C.-E.-A. — Standard methods and new procedures for isolation of Colon Bacilli from water, Am. Journal Public Health, pp. 446 à 469, mai 1934. à

LiTrERER W. — Simplified procedure in determining B. coli in water (presumptive test). Am. Jour.

Public Health, pp. 491 à 494, avril 1998.

MiNKEVICH et ROGOSIN. — Coagulation of milk used as indication for presence of B. coli in water. Zentralblätt für Bakt., pp. 159 à 161, mars 1932.

THOMPSON R. E. — Irregularities in tests for B. coli in water. Journal Bacter., pp. 209 à 221, mars 1927.