Report on the Bacteriology of Water. 



261 



Remarks. 



i 



Calculated average 

 numbers of bacteria 

 per 1 c.c. of water. 



Anthrax. 



150,000 

 100,000 

 135,000 



90,000 

 125,000 



46,000 

 105,000 

 125,000 



75,000 



Total. 



150,000 

 100,000 

 135,000 



90,000 

 125,000 



46,000 

 105,000 

 125,000 



75,000 



Number of 

 colonies on plate. 



Anthrax. 



3000 

 6000 

 1350 

 2700 

 1250 

 1380 

 1050 

 1250 

 750 



Total. 



3000 

 6000 

 1350 

 2700 

 1250 

 1380 

 1050 

 1250 

 750 



u 

 o 



?! 



J3 

 fi 



a a 

 .2 ° 



J° J? 



H l»' 



Quantity 

 of water 

 used for 

 plate. 



^ |H|U5 n\u> rt|lO CC|lO n|l<5 r-l|lO H|u! rlfcs 



Number 

 of days 



plate 

 was in- 

 cubated 

 at 20° C. 



cocooococoeocococo 



Number 

 of days 



stood at 

 20° C. 



OOr-irH<M<M00"tflO 



Date of 

 making 

 plate. 



OOrHrH(M(?qcOTfliO 

 <N<MC<l<N<M<N<N<NcM 

 <D 



S £ £ 2 5 5 ■ " 



i 



Date on 

 which 

 water was 

 collected. 



1 



| ........ 



1 



VOL. LIU. 



