THE WATER-SUPPLY OF TOWNS IN THE TKOPICS 313 



into which of Clemesha's groups the B. colt recently found by Thresh'" in deep well-waters 

 in England would go? In Khartoum, Clemesha's distinctions were, for several reasons, 

 unnecessary, but it is possible they may be of value even for deep well-waters, and not 

 only in the Tropics, although, considering the basis on which they rest, this is, at least, 

 doubtful. In any case, I think it will be admitted that the subject is one of great interest, 

 while, apart from the vexed question of B. coll, I think some of the problems mentioned, 

 some of the results recorded, and some of the conclusions reached, may be of service to 

 those who have the responsibility of examining and reporting upon town water-supplies in 

 tropical countries. 



Refbeences 



^ Bettencourt, A., and Borges, I. (December, 1908), " Becherches sur le li. coli dos Vertebres Inferieurs et des 

 Cereales." Arch. Inst, lioij. Bad. Cain.. Pcslaiia., Vol. II., No. 2, Lisbon. 



- Quiiaud and Mandoul, H. (1908), "A propos de la signification du Uncillus coli dans les eaux potables." 

 Annalcs de VlnstitiU Pmleu.r, Vol. XXII., p. 917. 



^ Prommo, W. (April 12, 1910), " Uber die Beurteilung des Colibakterienbefiiudes in Trinkwasser nebst 

 Bcmerkungen Uber den Nachweis und das Vorkommen der Colibazillen." Zcilsch. fur Hijij., Vol. LXV., No. 2. 



* Hilgermann, R. (1909), " Der Wert des Bacillus coli Befuudes zur Beurteiling der Reiuheit eines Wassers." 

 Klin. Jahr., Vol. XXII., 2. 



° Starkey, T. A. (1909), "New Bacteriological Standard for Water Analysis." Journal Eoijal tSanilartj 

 Institute, No. 9, p. 391. 



" Eussel and McLean, C. J. (1909), " Are present-day Standards of Analysis reliable as a guide to the 

 Wholesomeness of Drinking-Water ? " Journal Royal iSanitary Institute, No. 11, p. 394. 



' Gartner, A. (October 28, 1910), "Das Bacterium coli als Indikator fiir fakale Verunreiniguug eines 

 Wassers." Zeitschr. fiir Hijg., Bd. LXVIL, No. 1. 



* Dawson, A. W. (January, 1907), "The Supply of Drinking-Water in India, and its connection with the 

 Sub-soil Water." Journal Royal Institute Pithlic Health. 



'■> Edwards, R. T. (April, 1908), "A Biological Study of the Water Sujjply of the Philippine Islands, with a 

 Description of a New Pathogenic Organism." Philippinr Journal Science, B. Vol. III., No. 2. 



'» Katrak, N. N. (1909), "The Standard of Water Purity for India." Trans. Bom. Med. Vonrjress, Bombay _ 



^1 Daniels, C. W. (1908), " A Preliminary Report on Natural Waters and the effects of the Methods of 

 Purification adopted." Studies from Institute for Medical Research, Federated Malay States, Vol. III., Part II. 



1- Clemesha, W. W. (1909), A slad.y of the Bacteriology of Drinking- IFatcr Supplies in Tropical 

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'" Castellaui, Aldo. (March 19, 1910), " Note on the Intestinal Bacteriological Flora of Normal Individuals 

 in the Tropics." Cent, fiir Bali. Orig., Vol. LIV. No. 2, p. 123. 



'* Hale, P. B., and Melia, T. W. (August 24, 1910), "Studies on Inhibition, Attenu.ation and Rejuven.-ition 

 of Bacillus coli." Journal Infectious Diseases, Vol. VII., No. 4. 



' •'■ Jaeger, H. (December 9, 1892), "Die Aetiologie des infectionen fieberhaften Icterus (Weil'sche 

 Kraukheit). Ein Beitrag zur Kenntuiss scptischer Erkrankungen und der Pathogenitiit der Proteusarten." 

 Zeitschr. fiir Hyg., Bd. XII., pp. 525-596. 



'° Thresh, J. C. (April, 1910), "Notes on the Bacillus coli in Deep- Weil-Waters, etc." P^Mic Health, 

 Vol. XXIII., No. 7, p. 250. 



