152 SUBJECT INDEX. 



PAGE 



Boston sewage, bacteria in 45 



tap-water, bacteria in 9, 38 



Brookline tap-water, bacteria in 47 



Brooks, bacteria in 47 



Cambridge tap-water, bacteria in 10, 47 



Carbon dioxide, absorption of 70 



Cats, B. coli in 74, 75 



Cereals, B. coli in . 80 



Character of colonies, importance of, in ground waters 40 



Charles River above Boston, body temperature, count 45 



Chemical analysis of water, comparison with bacteriological 113 



Chemical examination of water no 



, applicability of 1 16 



Chicago drainage canal, B. coli in 89 



, bacteria in 39 



, routine bacteriological analyses 41 



Chichester, well waters in 115 



Cleaning mixtures 22 



Cold, action of, upon bacteria , 12 



Colon bacilli in Manchester Ship Canal 45 



, overgrown by streptococci 92 



Colon bacillus, as direct evidence of sewage 58 



, biochemical characters 58, 59 



, gas ratio 58 



, importance of number of 82 



, in normal intestine 58 



, isolation of, by litmus lactose agar 59 



, morphology of 58 



, pathogenesis in guinea-pigs 59 



, preliminary enrichment for 60 



, quantitative estimation of. 60 



, susceptibility to phenol 59 



Comparability of quantitative results 20 



Composition of media, effect on bacterial counts 30 



Connecticut River, bacteria in 42 



Constantinople, B. coli in water supplies 76 



Counting 32, 33 



Cows, B. coli in 74> 75 



Cycle of organic nitrogen 5 



