Decomposition, cause of, [30];
effect of cold on, [31];
of foods, [30–32]
Desserts, when harmful, [40];
when not harmful, [40]
Dining table, effect of dirty, [37];
cheerfulness at, [37]
Diphtheria, cure of, [108–111];
germs present after recovery, [101], [102];
germs present when throat is not sore, [104];
how to confine germs, [100];
how poison is fought, [108–110];
mild cases, how detected, [104];
nature of the poison, [108];
prevalence of, [100];
where germs come from, [100];
why some cases are not quarantined, [102–104]
Dirt, a cause of sickness, [77], [78];
getting into milk from cows, [23], [117];
from cow barns, [23–25];
from milk cans and bottles, [26], [27];
from milkmen, [25];
from flies, [28], [80], [81]
Diseased animals, effect on meats, [19–21];
effect on milk, [28];
tuberculosis from, [28], [155]
Drafts, evil effects of, [10];
how to prevent harm from, [10]
Ear, care of, [58];
drum, [179];
inner ear, [181];
middle ear, [179];
outer ear, [179]
Esophagus, [170]