Tadpole, A 126, 134.
Tanner, Dr., H 138.
Tapeworm, A 49.
Tarantula, A 94.
Taste, H 110, 143, 146.
Tear gland, H 149.
Teeth, H 88, 98, 99, 111;
of frog, A 130.
Teleutospores, 192.
Temperature, H 21;
nerves of, H 142, 146.
Tendon, H 41.
Tendril, P 101.
Terrapin, A 143, 144.
Thallophyte, P 181, 184.
Thallus, P 184, 197.
Thompson, Sir Henry, on smoking, H 87.
Thoracic duct, H 64, 65, 105.
Thorns, P 101.
Thought questions, H 20, 27, 79, 107, 109, 116.
Thyrse, P 160.
Thyroid gland, H 97.
Tillandsia, P 110.
Timber, decay of, P 195.
Tissue, H 7, 10, P 60, 62.
Toad, A 137.
Toadstool, P 194.
Tobacco, and heart, H 67;
and lungs, H 86;
and taste, H 148;
when enjoyable, H 87.
Tortoise, A 140, 143, 144.
Torus, P 134, 169.
Touch, H 145, A 119.
Toxin, H 160, 161.
Toyi Niku, Madame, quoted, H 141.
Trachea, H 74.
Tracheid, P 65.
Transpiration, P 98, 103.
Trap-door spider, A 94.
Tube feet, A 35.
Tuberculosis, H 5, 160.
Tumble bug, A 90, 91.
Turtle, A 140, 143, 144.
Twiners, P 129, 131.
Typhoid fever, H 159.
Umbel, P 159.
Umbo, A 98.
Undergrowth, P 12.
Ungulate, A 212.
Urea, H 94.
Uric acid, H 114.
Urinary tubule, H 27.
Vacuole, A 11, 12, 14.
Valve, P 164, H 51, 53, 57.
Vampire, A 203.
Variation, A 147, P 2.
Variety, A 8.
Vaso-motor nerves, H 23, 68.
Vaucheria, P 186.
Vegetables, H 95, 112.
Venomous snakes, A 143.
Vent, A 42.
Ventilation, H 71, 82, 83.
Ventral, A 43.
Ventricle, H 53.
Vermes, A 9, 125.
Vermiform appendix, H 4, 106.
Vertebra, H 71, 82, 83.
Vertebrates, A 9, 125.
Vertebrate skeletons, A 218.
Verticellate, P 84.
Vestigial organs, H 106.
Villi, H 104.
Vinegar, H 94.
Viscera, H 127;
of bird, A 163.
Vitreous humor, H 152.
Voluntary act, H 122, 124.
Warning sound, A 147.
Wasps, digging, A 89.
Water-pore, P 88.
Waterworks, H 163.
Weevil, A 90, 91, 96.
Whale, A 208.
Wheat rust, P 192.
White corpuscles, H 59;
origin of, H 61;
work of, H 60, 161, 162.
White weed, or ox-eye daisy, P 155.
Whorled, P 84.
Willow mildew, P 190.
Wind travelers, P 173.
Wings, of grasshopper, A 67;
of bird, A 153, 158.
Woodpecker, A 180.
Woody fiber, P 17.
Worms, A 42.
Wounds of plants, P 56.
Written exercises, H 15, 50, 116.
Yeast plants, P 190, H 158.
Yellow fever, H 160.
Yellow spot, H 151.
Zoology defined, A 1.
Zoophytes, A 33.
Zygnema, P 185.
Zygospore, P 185, 189, 181, 189.
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