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Pollen basket, A. B., 33, Fig. 26.
Pollen tubes, P. B., 75, Figs. 26, 27.
Pollination, P. B., 74, 76, 88.
Pond scum, P. B., 166.

Poppy, P. B., 129.

Porifera, A. B., 175.

Posterior, A. B., 6.

Potato crop of New York State, P. B.,
122.

Potatoes, P. B., 107, 127, Fig. 49.
Preparations for laboratory, H. B.,
175.

Preservation of food, H. B., 23.
Pressure, effect of, on bones, H. B.,
148, Fig. 46.

Prevention,

of diphtheria, H. B., 36.

of self-pollination, P. B., 84, 85.
of tuberculosis, H. B., 32

of typhoid fever, H. B., 37.
Primary root, P. B., 100.

Proboscis, A. B., 6, 10.

Pulse, H. B., 112, 114.
Pumpkin, cross-pollination, P. B., 85.
Pupa,

of bee, A. B., 41, Fig. 29.

of butterfly, A. B., 12, Fig. 6.
of mosquito, A. B., 44, Figs. 31, 32.
Pupil of eye,

of bird, A. B., 62.
of man, H. B., 163.

Purchase of foods, economy in, H. B.,
58.

Pure Food and Drug Law, H. B., 24,
81.

Pus, H. B., 29.
Pylorus, H. B., 93.

Quail, A. B., 90, Fig. 62.
Quartered oak, P. B., 47.

Queen-bee, A. B., 35, Fig. 24.
Quinine, P. B., 129.

Radiometer, P. B., 66, footnote.

Production of energy, necessity of Rainfall, regulation of, P. B., 136.

foods for, H. B., 45.

Raspberry fruits, P. B., Fig. 40.

Proper posture, H. B., 153, Figs. 48, Rats and mice destroyed by birds,

49.

Propolis, A. B., 40.
Protective resemblance,

of crayfish, A. B., 157.
of toad, A. B., Fig. 87.
of walking stick, A. B., 31.
Protein,

composition of, P. B., 14, 15.
manufacture of, P. B., 24, 61.
osmosis, P. B., 37.

test for, P. B., 18.

use of term, P. B., 13, footnote.
Protection of forests, P. B., 138, 139.
Proteins,

digestion of, H. B., 95, 96, 98.
in human body, H. B., 44.
uses of, H. B., 51.

Prothallus of fern, P. B., 162, Fig. 83.
Protonema of moss, P. B., 164.
Protoplasm, P. B., 30; H. B., 5.
Protozoa, A. B., 172.
Proximal, A. B., 6.
Pseudopods, A. B., 170, 171.
Pulp cavity, H. B., 89.

A. B., 87, Fig. 64.

Reasons for cooking animal foods,

H. B., 52.

for cooking vegetables, H. B., 54.
Red corpuscles,

of frog, A. B., 111, 113.

of man, H. B., 8, 128, Fig. 5.

Reed, Dr. Walter, A. B., 50, Fig. 34.
Reference books, list of, suggested,

H. B., 207-209.

Reflex activities, H. B., 158.
Reforesting, P. B., 138.
Regions of body, H. B., 1.
Relatives,

of bees, A. B., 43.

of grasshoppers, A. B., 31.
Repair, necessity of food for, H. B.,

45.

Repair of living things, P. B., 2.
Reproduction,

in plants, P. B., 70-96.

of amoeba, A. B., Fig. 172.
of bacteria, H. B., 12, Fig. 7.
of bee, A. B., 36.

Reproduction,

of bird, A. B., 70.

of butterfly, A. B., 11.
of crayfish, A. B., 159.
of fish, A. B., 37.
of frog, A. B., 114.
of grasshopper, A. B., 28.
of house fly, A. B., 57.
of living things, P. B., 3.
of mammals, A. B., 190.
of mosquito, A. B., 43.

of paramecium, A. B., 169.

of reptiles, A. B., 185.

Reproductive hyphæ of molds, P. B.,

150.

Reptiles, A. B., 185–187.

Runner, P. B., 106.
Rusts, P. B., 152.

Safeguards of body against disease,
H. B., 42.

Saliva, H. B., 90-92.

Salivary glands, H. B., 91.

Salmon, A. B., 142–144, Fig. 107.
Sand, P. B., 110.

San José scale, A. B., 59, Fig. 43.
Sap, of cell, P. B., 30.

path through leaves, P. B., 59.
path through roots, P. B., 42, 43.
path through stem, P. B., 48, 49.
Scales of butterfly, A. B., 9, Figs. 7, 8.
Scarlet fever, H. B., 41.

Respiration, definition, P. B., 68, 69. Scavengers, birds as, A. B., 87.

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Rhizoids of ferns, P. B., 163, Fig. Seed dispersal, P. B., 91-94.

83, C.

Seed leaves, P. B., 98.

161.

Rhizome of fern, P. B., 162, Fig. 82. Seed-producing plants, P. B., 159-

Ribs, H. B., 146, Fig. 44.

Rind, P. B., 47.

Roasting meats, H. B., 54.

Robin, A. B., 85, 90, Fig. 71.

eggs, A. B., 73.

Roe, A. B., 142.

Seedlings, comparison of, P. B., 103,

104.

Seeds, P. B., 72, 74, 77, 97–105.
numbers, produced by plants, P
B., 115.

Root-hairs, P. B., 40, Figs. 11, 12, 13. Segments, A. B., 9.

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Shaft of feather, A. B., 67, Fig. 50.
Sheath leaf, P. B., 100.

Shoulder blades, H. B., 146, Fig. 44.
Shower baths, H. B., 141.
Shrimp, A. B., Fig. 116.
Shrub, P. B., 156, Fig. 79.

Sieve tubes, P. B., 50, 62, Fig. 16.
Silkworms, A. B., 20, Fig. 16.
Siphons of mollusk, A. B., 184.
Skeleton, H. B., 144-150, Fig. 44.
Skeleton of arm of man and wing of

ostrich, A. B., Fig. 48.

of frog, A. B. 114.
Sperm cell,

of bee, A. B., 36.

of bird, A. B., 70, Fig. 53.
of butterfly, A. B., 11.

of crayfish, A. B., 159.
of fern, P. B., 163.
of fish, A. B., 137.

of frog, A. B., 114.

of grasshopper, A. B., 28.
Sperm nucleus, P. B., 77, Figs. 27, 28,
29.

Skeleton of leg of man and of os- Spinal cord, H. B., 155.

trich, A. B., 68, Fig. 51.

Skin, H. B., 139 143.
Skull, H. B., 146, Fig. 44.

Sleep, importance of, H. B., 129, 151,
160.

Sleeping sickness, A. B., 174.
Slip, P. B., 106.

Small intestine, H. B., 97.

absorption, in, H. B., 100.
Smallpox, H. B., 40.

Smuts, P. B., 152-153, Fig. 77.
Snail, A. B., Fig. 133.
Snake, A. B., Fig. 135.

Soda water, H. B., 66.

Soil, P. B., 110-114.

air in, P. B., 111.

cultivation of, P. B., 113.

heat, relation of soil to, P. B., 112.
moisture of, P. B., 111.

Spiracles, A. B., 26.
Spirilla, H. B., Fig. 7.

Spirillum form of bacteria, P. B., Fig.
71, D.

Spirogyra, P. B., 167, Fig. 85.
Sponges, A. B., 175, Fig. 123.
Spore formation of bacteria, H. B.,
13, Fig. 7.

Spore formation in bacteria, P. B.,
143, Fig. 71, D.

Spore cases, of mold, P. B., 150.

of ferns, P. B., 162, Figs. 82, 83.
Sprains, H. B., 149.

Spreading board, A. B., 2, Fig. 3.
Spore-producing plants, P. B., 161-
170.

Spores,

of mold, P. B., 150.

of ferns, P. B., 162, Figs. 82, 83.

Soil fertility, relation of bacteria to, Spur, P. B., 80.

H. B., 20.

Soil water,

absorption of, P. B., 41.

transmission of, P. B., 42, 48, 58.
Soluble mineral matters, H. B., 95.
Soothing sirups, H. B., 78.

Sorus of fern, P. B., 162, Fig. 82.
Soups, prepartaion of, H. B., 53.
Source of energy, P. B., 66.
Sow bug, A. B., Fig. 115.
Sparrow, A. B., 80, 90, Fig. 70.
Species, plant, P. B., 161, 170.
Spermary, A. B., 70.

of crayfish, A. B., 159.
of fern, P. B., 163.

of fish, A. B., 137.

Squash, cross-pollination, P. B., 86,
Fig. 32.

Squash seedling, P. B., Fig. 45.
Stamens, P. B., 71, 72, 80, 88, Fig. 24.
Staminate flowers, P. B., 87, Figs. 32,
A, 33.

Starch,

composition of, P. B., 13, 15.
digestion of, P. B., 36, 37; H. B.,
90, 98.

manufacture by chlorophyll, P. B.,
23, 90, 98.

manufacture by different kinds of
leaves, P. B., 22, footnote.
manufacture in sunlight, P. B., 22.
test for, P. B., 15.

Stegomyia mosquito, A. B., 50, 174; | Tadpole, A. B., 116, Fig. 84.

H. B., 42.

Stems,

changes during growth, P. B., 51.
functions of, P. B., 48-51.
structure, P. B., 45-48.
Stewing, H. B., 53.

Stickers, P. B., 93.

Stigma, P. B., 72, 73, 81, 88, Fig. 25.
Stimulants and narcotics, H. B., 64-
81, 104-105, 143, 161-162.
Sting ray, A. B., Fig. 94.
Stipules, P. B., 56.

Stock, P. B., 105.

Stoma, P. B., 58, 60, 61, 62, Figs. 21,

22.

Stomach,

of bee, A. B., 39, Fig. 28.
of fish, A. B., 130, Fig. 98.

of frog, A. B., 108, 110, Fig. 80.
of man A. B., 2, 93-97, 99, Fig. 2.
Stone fruits, P. B., 96.
Storage of foods, P. B., 61.
Strawberry, flower, P. B., Fig. 41.
fruit, P. B., Fig. 42.
plant, P. B., Fig. 48.
Struggle for existence among plants,
P. B., 114-119, Fig. 53.

Style, P. B., 73, 81, 88.
Stylonychia, A. B., Fig. 117.
Sucking tube, A. B., 6, 10.
Suffocation, H. B., 135.

Sugars as part of diet, H. B., 62.
Sugar cane, P. B., 127.
Summer residents, A. B., 81.

Sun, as source of energy, P. B., 66.
Sunlight, necessary for starch manu-

facture, P. B., 22.

Supers, A. B., 34, Fig. 23.

Tapeworm, A. B., Fig. 129.
Tarsus,

of bee, A. B., 33.

of grasshopper, A. B., 24.
Tea, P. B., 129, Fig. 62.

effect on body, H. B., 65.
preparation of, H. B., 65.
use and abuse of, H. B., 65.
Teeth,

of fish, A. B., 128.

of frog, A. B., 104.

of man, H. B., 85-89.
Temperature,

effect on growth of bacteria, H. B.,
17.

of soil, P. B., 112.

relation of, to germination and
growth, P. B., 109.

Tendons, H. B., 3.
Tentacles, A. B., 176.

Tent for consumptives, H. B., 33,
Fig. 15.

Terminal bud, P. B., 53.

Tern, A. B., 95, Figs. 49, 76.
Thigh of grasshopper, A. B., 24.
Thorax, A. B., 6.

Throat, H. B., 92, 126, Fig. 39.
Thrush, A. B., 79, Fig. 68.
Tibia,

of bee, A. B., 33.

of grasshopper, A. B., 24.

Tight clothing, effect on respiration,
H. B., 133, Fig. 43.

Tissues, H. B., 3.

definition, H. B., 4, 9.
Toad, A. B., 116, Fig. 87.
Toadstools, P. B., 151.
Tobacco, H. B., 75-78.

Survival of the fittest, P. B., 118- Tokay grape fruit, P. B., 90.

119, Figs. 53, 55.

Swarming, A. B., 41, Fig. 30.
Sweat glands, H. B., 140, Fig. 43.
Sweeping, proper methods of, H. B.,

25-29, Fig. 11.

Sweet potato, P. B., 127, Fig. 60.
Swim bladder, A. B., 127.
Swimmeret, A. B., 153, 159.

Swimming birds, A. B., 76, Fig. 57.

Tomato fruit, P. B., 90.
Tongue,

of bee, A. B., 32, Fig. 25.

of frog, A. B., 104, 110, Fig.
79.

of man, H. B., 85.
Tonsillitis, H. B., 134.

Tonsils, H. B., 134, Fig. 27.

Topics, order of, H. B., 178-180.

Total abstinence and life insurance, Variation among plants, P. B., 114,

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Treatment,

of cuts, H. B., 29.

of diphtheria, H. B., 35.
of pneumonia, H. B., 34.
of tuberculosis, H. B., 32.
Tree, P. B., 154, Figs. 78, 79.
Trichina, A. B., Fig. 130.

Tubercles of lung tissue, H. B., 32.
Tubercles on roots, H. B., 21, Fig. 9.
Tuberculosis, H. B., 30-34.
Tubers, P. B., 107.

Tufted fruits or seeds, P. B., 92.
Tumbler garden, P. B., 102.
Tulip, flower, P. B., 70-72.

Turkey, A. B., 78.

Turtle, A. B., 185.

Tussock moth, A. B., 14, Fig. 11.
Tympanum, H. B., 166.

of fish, A. B., 131.

of frog, A. B., 111.

of man, H. B., 109, 116, Fig. 37.
Ventilation, H. B., 136-138.
Ventral, A. B., 6.

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Typhoid fever due to bacteria, P. B., Wading birds, A. B., 77, Fig. 61.

145; H. B., 36-38.

Umbo, A. B., 181.

Upper lip, A. B., 23, Fig. 18.

Walking sticks, A. B., 31, Fig. 21.
Wall,

of cell, P. B., 28, 29.

of ovary, P. B., 72, 73.

Use of foods, economy in, H. B., 59. Warbler, A. B., Fig. 72.

Uses,

of food substances, H. B., 50.

of forests, P. B., 132–137.

of plants, P. B., 127-132.

Uvula, H. B., 92.

Vaccination, H. B., 40.

Vacuum cleaner, use of, H. B., 26,

Fig. 11.

Valves,

in arteries, H. B., 114.

of heart, H. B., 112, Fig. 34.

of mussel, A. B., 181.

Vane of feather, A. B., 67, Fig. 50.

Warm baths, H. B., 141.
Water,

as a part of diet, H. B., 103.
composition and preparation, P. B.,
10.

given off from leaves, P. B., 59.
in human body, H. B., 45.

osmosis of, P. B., 33.
test for, P. B., 20.

uses of, H. B., 52.
Water supplies, H. B., 38.
Wax glands, H. B., 166.

Webber, Dr. H. J., P. B., 120-122.
Web-footed birds, A. B., 76, Fig. 57.

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