Examination of water (chemical and bacteriological) / by William P. Mason.

  • Mason, William Pitt, 1853-1937.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Examination of water (chemical and bacteriological) / by William P. Mason. Source: Wellcome Collection.

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    CONTENTS. CHAPTER I. PAGE Introductory i Popular Misconception as to the Character of Water Analysis. A Knowledge of the Source of the Sample Necessary to Proper Interpretation of Analytical Results. CHAPTER II. Chemical Examination of Water 7 Directions for Sampling. Method of stating Analytical Results. Special Laboratory Required. Turbidity. Odor. Taste. Temperature. Reaction. Color. Total Solids. Loss on Ignition. Hardness. Chlorine. Ni- trites. Nitrates. Organic Matter. Free Ammonia. Albuminoid Ammonia. Required Oxygen. Lead. Copper. Iron. Zinc. Arsenic. Chromium. Alum. Phosphates. Analysis of Mineral Residue. Dissolved Gases. Conversion of Parts per Million into Grains per U. S. Gallon. CHAPTER III. Bacteriological Examination of Water 93 Preparation of Media. Bouillon. Nutrient Gelatin. Sugar Bouillon. Sugar Gelatin. Agar-Agar. Steriliz- ing. Sampling. Sowing Media. Incubating. Count- ing Colonies. Gas-forming Bacteria. Tests for Bacillus Coli communis. Difficulty of Detecting Bacillus typho- sis. Diagnostic Value of the ''Colon Group. As to Bacterial Index of Faecal Pollution. Great Cold not Fatal to Bacteria. Enumeration of Organisms not Bac- terial. Index 129