INDEX 
167 
Eggs, clean, 73 
Epidemics of typhoid, 81 
Essential oils as preservatives, 
7 2 
Excretions of bacteria, 18 
Experiences of students, 119- 
124 
Experiments in hospitals, 100 
with bacteria, 64 
with dust, 7 
with yeasts, 42 
Extracts from the Instruct¬ 
or’s Note Book, 117-125 
Favorable conditions for 
germs, 76 
Fermentation, 114 
early theory of, no 
processes, 53 
products of, 115 
Film-forming bacteria, 22 
Filtered water, 85 
Filters, porcelain, 84 
Fission reproduction, 21 
Flagella, bacteria with, 27 
Food, covering, 104 
of bacteria, 20 
Forms of bacteria, 17 
Formation of pus, 90 
Fungi, bacteria classed as, 23 
Gas produced by yeast, 44 
Gastric juices, effect on bac¬ 
teria, 87 
Germ, definition of, 16 
Germs, breeding ground for, 7 7 
disease, 75-86 
pathogenic, 66 
resistance of body to, 86 
Growth of bacteria, 22 
of dust-gardens, 11 
of mold, 33 
of yeast, 40 
Harmful bacteria, 63 
preservatives, 69 
Health, definition of, 88 
History of bacteriology, 109- 
Ir 3 
Hydrophobia, 148 
Ice, 85 
Identifying disease germs, 113 
Immunity, 92, 134 
artificial, T36 
natural, 93 
Importance of bacteriology, 3 2 
Infected material, burning, 116 
Infection by oysters, 82 
method of, 78 
sources of, 86 
Infectious diseases, 133 
Ingredients of dust, 4 
Inoculating the soil with bac¬ 
teria, 52 
Intermittent sterilization, 65, 
116 
June butter, 55 
flavor bacterium, 56 
Koch’s theory, 111 
Laboratory study of bacteria, 
' 
Lactic acid, production of, 14 
