CONTENTS 



PAGES 



Preface ------ iii-iv 



Introduction _.-... 1-4 



Part I. PUBLIC HEALTH CHEMISTRY. 



Chap. I. Chemical Analysis - - - 5-18 



Standard solutions, 6 ; Normal solutions, 7 ; Indicators, 

 10 ; Acidimetry and alkalinity, 12 ; Weighing and 

 measuring, 14. 



Chap. II. Water Analysis - - - 19-61 



Introductory, 19 ; Collection of sample, 21 ; Physical 

 examination, 22 ; Chemical examination, 22 ;] Quanti- 

 tative estimation of lime, magnesia, phosphates and 

 sulphates, 30 ; Hardness, 34 ; Organic matter, 38 ; 

 Nitrites and nitrates, 47 ; Ice, 53 ; Mineral waters and 

 aerated waters, 53 ; Interpretation of results, 53 ; 

 Sewage and sewage effluents, 56. 



Chap. III. Examination of Air - 62-70 



Collection, 62 ; Odour, temperature, pressure and 

 humidity, 63 ; Carbonic acid gas, 63 ; Ozone, 66 ; Oxid- 

 izable and organic matter, 66 ; Noxious emanations, 67 ; 

 Suspended matter, 69 ; Carbon monoxide, 69 ; Oxygen, 

 69 ; Gases in mines, 70. 



Chap. IV. Soils - - -. - - 71, 72 



Examination of sample : Ground air, 71 ; Ground water, 

 72 ; Soil temperature, 72. 



Chap. V. Foods - - - - - 73-112 



Milk, 73 ; Cream, condensed milk, infant foods, 84 ; 

 Butter, 87 ; Cheese, 95 ; Cereals, 96 ; Starches, 101 ; 

 Carbohydrates, 102 ; Golden syrup, honey, no ; Mustard, 

 pepper, ginger, peas, meat extracts, 112. 



Chap. VI. Beverages - 1 13-134 



Coffee, 113; Tea, 115; Cocoa, 117; Lemon juice and 

 lime juice, 119 ; Vinegar, 122 ; Beer, 125 ; Wine, 130 ; 

 Spirits, 132. 



