104 
INDEX 
Stages, larval, 69, 71, 72, 73; pupal, 
69, 72, 73 
Stamen, 3, 88 
Staminate flower, 88 
Starch, 12, 15, 29, 30, 36 
Starch paste, 95 
Statocyst, 64 
Stem, 1, 2, 23, 24 
Sterilization, 42 
Stigma, 3 
Stimulus, 76, 77 
Sting, 72 
Stipule, 27 
Stolon, 26 
Stomach, 51, 66, 68, 80 
Stomate, 27, 29 
Strawberry, 26 
Street, 48, 74 
“String,” bean pod, 7 
Stump, 84 
Style, 3 
Sugar, 13 
Sunfish, 77, 78 
System, circulatory, 52, 62, 65, 68; 
digestive, 52, 62, 68; excretory, 63, 
68; nervous, 63, 66, 68, 81; re¬ 
productive, 63, 68; respiratory, 50, 
54, 62, 68, 78 
Swimmeret, 65 
Tadpole, 81 
Tail, 77, 81 
Tarsus, 67 
Tassel, corn, 2 
Taste, 64 
Teeth, 51, 79, 84 
Telson, 65 
Temperature, 11, 12 
Tentacle, 60 
Testis, 80 
Thigh, 79 
Thorax, 64, 66, 67, 69, 70 
Throat, 51 
Tibia, 67 
Timothy, 1 
Timothy hay, 41, 44 
Tissue, 24, 29 
Toes, 79, 82 
Tongue, 51, 79, 83 
Tonsil, 52 
Tortoise, 82 
Trachea, 50, 68 
Transpiration*, 30 
Transplanting, 18 
Tree, 88, 90 
Trochanter, 67 
Tropism, 77 
Trunk, 49, 50 
Turgor, 22 
Turtle, 82 
Twig, 23, 86 
Tympanum, 68 
U. S. Public Health Service, 37 
Vacuole, 36, 58; contractile, 53, 59; 
food, 58, 59 
Variation, 57 
Vein, 2, 27, 52 
Ventral blood vessel, 62 
Ventricle, 52, 80 
Vertebra, 49 
Vertebrate, 49, 50 
Vinegar, 44 
Vocal cord, 51 
Waist, 55 
Water, 45; cistern, 45; distilled, 45; 
drinking, 46, 47; faucet, 45; pond, 
45; purification, 47; supply, 47; 
surface, 45; well, 45 
Weeds, 75, 92 
Well, 48 
Wheat rust, 33, 34 
Wild flower, 92 
Wind, 8 
Wings, 66, 67, 69, 71, 72, 73, 83 
Wood section, 25; longitudinal, 25; 
radial, 25; tangential, 25; trans¬ 
verse, 25 
“Worker,” 72 
Worm, 61, 62, 63, 71 
“Worm,” cabbage, 71 
Xylem, 24 
Yeast, 34, 36 
“Zone of root hairs,” 18 
