Part 46

Application of colon group tests, 102.

Arsenic, determination of, 63.

Azolitmin solution, 96.

Bacillus aërogenes, reactions, 108. cloacae, reactions, 108. coli, reactions, 108.

B. coli group, tests, 100. application of, 102. fecal and non-fecal, 106. summary of tests, 104.

Bacteriological examination, 93. bibliography, 110.

Basicity ratio, 80.

Bibliography, bacteriological, 110. chemical, 82. microscopical, 91.

Biochemical oxygen demand, 71. in sludge and mud, 76.

Bismuthate method (Mn), 49.

Boric acid, 63.

Bottles, sample, 1, 93. dilution, 93.

Bromine and iodine, determination of, 61.

Broth, nutrient, 95. sugar, 95.

Calcium, determination of, 57.

Carbon dioxide, determination of, 40.

Chemical analysis, water and sewage, 1. bibliography, 82.

Chemicals, analysis of, 77.

Chloride, determination of, 41.

Chlorine, determination of, 64.

Coefficient of fineness, 8.

Collection of samples, bacteriological, 93. chemical, 1.

Colon group, tests (see “B. coli”), 100.

Color, determination of, 9.

Copper, determination of, 53, 55.

Counting (bacterial), 99.

Cultural characters of colon group, 108.

Culture media, 94. azolitmin solution, 96. Endo’s medium, 97. litmus-lactose-agar, 97. litmus solution, 96. methyl red test, 107. nutrient agar, 96. nutrient broth, 95. nutrient gelatin, 96. sterilization, 95. sugar broth, 95. titration, 94. tryptophane broth, 107.