72 Proceedings of the Royal Society of Victoria. 



Table II. 

 Number op Bacteria per Cubic Centimetre op Tap Water. 



REMARKS. 



It will be observed that on three occasions the average number 

 of organisms rose to 4800, 6000 and 3600 per c.c. respectively. 

 If these three are omitted the average for the 196 observations 

 falls to 83 per c.c. Taking its average at 154 per c.c. the results 



