TABLE OF CONTENTS.
| Chapter. | PAGE | |
| [I]. | —Introductory | 1 |
| [II]. | —Food | 4 |
| [III]. | —The Varieties of Food | 9 |
| [IV]. | —Diseases due to Food | 23 |
| [V]. | —Diet | 29 |
| [VI]. | —The Preparation and Preservation of Food | 38 |
| [VII]. | —Condiments and Beverages | 45 |
| [VIII]. | —Fermented Drinks | 55 |
| [IX]. | —Water | 65 |
| [X]. | —The Storage and Delivery of Water | 74 |
| [XI]. | —Impurities of Water | 78 |
| [XII]. | —Origin and Effects of the Impurities of Water | 89 |
| [XIII]. | —The Purification of Water | 94 |
| [XIV]. | —Composition and Properties of Air | 100 |
| [XV]. | —Suspended Impurities of Air | 105 |
| [XVI]. | —Gaseous and Other Impurities of Air | 111 |
| [XVII]. | —Trade Nuisances | 120 |
| [XVIII]. | —The Examination of Air | 125 |
| [XIX]. | —The Purification of Air | 129 |
| [XX]. | —General Principles of Ventilation | 132 |
| [XXI]. | —Problems as to Ventilation | 137 |
| [XXII]. | —Methods of Ventilation | 146 |
| [XXIII]. | —Ventilation by the Introduction of Warmed Air | 155 |
| [XXIV]. | —The Warming of Houses | 158 |
| [XXV]. | —House Drainage | 165 |
| [XXVI]. | —Cesspools and Main Sewers | 183 |
| [XXVII]. | —Problems as to Flow in Sewers | 187 |
| [XXVIII]. | —The Disposal of Sewage | 190 |
| [XXIX]. | —Conservancy Methods | 194 |
| [XXX]. | —Position of the House | 201 |
| [XXXI]. | —The Materials used in the Construction of a House | 205 |
| [XXXII]. | —Construction of the House | 209 |
| [XXXIII]. | —The Soil | 219 |
| [XXXIV]. | —Climate and Weather | 227 |
| [XXXV]. | —Meteorological Observations | 237 |
| [XXXVI]. | —Personal Hygiene | 245 |
| [XXXVII]. | —Personal Hygiene—Exercise | 249 |
| [XXXVIII]. | —Personal Hygiene—Rest and Sleep | 257 |
| [XXXIX]. | —Personal Hygiene—Cleanliness | 260 |
| [XL]. | —Clothing | 265 |
| [XLI]. | —Parasites | 273 |
| [XLII]. | —The Rôle of Insects in Spreading Disease | 281 |
| [XLIII]. | —Infective Diseases | 284 |
| [XLIV]. | —Acute Infective Diseases | 291 |
| [XLV]. | —Tuberculosis | 309 |
| [XLVI]. | —Notification and Isolation | 317 |
| [XLVII]. | —Disinfection | 324 |
| [XLVIII]. | —Vital Statistics | 335 |
SPECIAL TABLE OF CONTENTS FOR ARITHMETICAL PROBLEMS IN HYGIENE.
| PAGE | |
| Problems in Milk Analysis | [12] |
| Problems in Dietetics | [35] |
| Problems in Water Analysis | [86] |
| Problems in Air Analysis | [126] |
| Problems as to Ventilation | [137] |
| Problems as to Flow in Sewers | [187] |
| Problems in Meteorology | [242] |
| Problems as to Work | [254] |
| Problems in Vital Statistics | [336] |
HYGIENE.
[CHAPTER I.]
INTRODUCTORY.
In classical mythology, Æsculapius was worshipped as the god of Medicine, while his daughter Hygeia had homage done to her as the sweet and smiling goddess of Health. The temples of these two deities were always placed in close contiguity; and statues representing Hygeia were often placed in the temple of Æsculapius. In these statues she is represented as a beautiful maid, holding in her hand a bowl, from which a serpent is drinking—the serpent typifying the art of medicine, then merely an art, now establishing its right more and more to the dignity of a science.