65, 72, 125, 132.

Cells, 8.

Cells, blood tubes of, 51.
breathing of, 61.
burning of, 62.
composition of, 11.
food of, 13, 55.
messages of, 85, 100.

Cells of blood, 49, 132.
bone, 109.
brain, 88.
epithelium, 76.
muscle, 115.
skin, 75.
spinal cord, 86.
yeast plant, 38.

Cheese, 23.

Chest, 60.

Chewing, 14.

Chewing gum, 34.

Chewing tobacco, 33.

Cider, 42.

Cigarettes, 34.

Cigars, 34.

Clams, 24.

Clot, 49.

Clothes, 63.

Coated tongue, 20.

Coffee, 27.

Cold, feelings of, 101.

Colds, 54, 65, 72, 125, 132.

Connective tissue, 9.

Contagious diseases, 137.

Cooking, 13.

Cotton, 63.

Cream, 23.

Cross-eyes, 102.

Cuts, 53.

D

Deafness, 105.

Decay, 124.

Delirium tremens, 96.

Diaphragm, 60.

Digestion, 13.

Diphtheria, 53, 134, 137.

Dirt, 126.

Dirt in eye, 102.

Disease germs, 29, 53, 65, 72, 81, 123.

Distillation, 43.

Drinking cup, 128.

E

Ear, 104.

Ear wax, 104.

Eating, 20.

Egg, 23.

Epidermis, 76.

Epithelium, 75.

Eustachian tube, 105, 136.

Exercise, 118.

Eye, 101.

Eyeball, 101.

Eyelids, 102.

F

Far sight, 103.

Fat, 11, 18, 25, 49, 92.

Fear, 92.

Feeling, 100.

Fermentation, 37.

Fever, 125.

Fire drill, 93.

Fish, 24.

Flannel, 63.

Flies, 130.

Food, 12, 13, 19, 23.

Fresh air, 67, 129.

Fruit, 25.

Fur, 64.

G

Gastric juice, 17.

Gelatine, 11.

Germs, 29, 53, 65, 72, 81, 123.

Gizzard, 14.

Good habits, 94.

Grain, 24.

H

Habit, 94, 127.

Hair, 76.

Hair dyes, 77.

Hair oil, 77.

Handkerchief, 135, 136.

Healing, 53.

Hearing, 104.

Heart, 50.

Heart beat, 50, 55.

Heat, 62, 101.

Heating houses, 65.

House flies, 129.

Hunger, 29.

I

Intemperance, 29.

Intestine, 18.

Iron, 12.

J

Jamaica ginger, 47.

Joints, 110.

K

Kidneys, 62, 78.

Knowledge, 89.

L

Lead, 27.

Life, 12.

Lime, 12.

Linen, 64.

Liver, 18, 19.

Lungs, 60.

M

Maggots, 130.

Malaria, 130.

Matter, 54.

Meal, 24.

Measles, 134, 137.

Meat, 24, 116.

Memory, 89.

Microbe