Lymphatics, [171]

Malaria, how transmitted, [92];
how prevented, [93]

Manure, a hatching place for flies, [80], [82];
how to dispose of, [82]

Meal times, frequency of, [53];
regularity of, [53];
should be pleasant, [37], [38]

Measles, after effects of, [128];
fatality of, [128];
necessity of care in, [129];
seriousness of, [128];
why to avoid, [128]

Meats, characteristics of good, [18];
Clean Meat League, [19];
from diseased animals, [19–21];
germs cause poison in, [19], [32];
how kept clean, [18];
should be cooked, [35];
value of, as a food, [18]

Milk, as carrier of disease, [22], [117];
effect of germs on, [22];
effect of disease in cow on, [28];
flies in, [28];
how germs get into, [23–28];
impure, dangerous, [22];
polluted water in, [27];
typhoid fever carried by, [117];
value of, as a food, [14], [20]

Mosquitoes, as disease carriers, [92], [93];
how to get rid of, [94]

Mouth, why some breathe through, [49]

Mouth-breathing, effect of, [50]