INDEX 



Acid, acetic, 103 



carbonic, 67, 72, 74, 78, 



poured into air, 108 



air food, 120 



layer in air, 121 



lactic, 36 



Acorn, evolution of, 109 

 Alcohol, properties, 76 



great good, 76 



by microbe, 77 



distilled, 78 

 Apple, cider, 73 

 Atom, the, 31 



size, 36 



motions, 37 

 Air, breathe clean, 295 



amount breathed, 295 



nature keeps clean, 296 



box of, 298 



Calcutta horror, 297 

 Antitoxins, nature's, 274 



how made, 276 



great remedy, 277 

 Appendix, rudimentary 

 gan, 225 



situated, 286 



size, 226 



appendicitis, 228 

 Atmosphere, envelope, 122 



layers, 122 



B 



Bacteria, how used, 21 

 Barley, beer, 65 

 Beta rays, 39 

 Body cells, 274 

 defense by, 275 



Bread, by microbe, 81 



ancestor, 83 



dray horse, trotter, 84 

 119 Bronchitis, caused by germ, 141 



fatality, 141 



how to treat, 143 

 Bubonic plague, see Contents 



Cancer, germ, 232 



slow, 233 



mortality, 233 



liquid oxygen, 233 

 Carbuncle, microbe, 238 



prevent, 239 

 Cell, evolution, 47 



microbe, 50 



Cemetery, dangerous, 314 

 Certainties, 325 

 Cholera infantum, germs, 245 



mortality, 246 



prevent, 245 



Chicken pox, prevent, 247 

 Cleanliness, disease, 293 

 or- skin, 294 



Cheese, see contents 

 Cider, see contents 

 Colds, see contents 

 Cycle, the great, 42 



carbon, 122 



nitrogen, 125 

 \ Oxygen, 127 



Dead, cremate, 314 

 Dengue fever, 194 

 Diphtheria germ, 165 

 Dissolution, evolution, 42 



347 



