102 
INDEX 
Mandible, 64, 67 
Manure, 72 
Maple, 88 
Maxilla, 65, 67 
Maxilliped, 65 
May beetle, 69, 70 
Medium, culture, 42 
Medullary rays, 24, 25 
Mesentery, 80 
Mesothorax, 67 
Metathorax, 67 
Metamorphosis, 81; complete, 70; 
incomplete, 69 
Micronucleus, 59 
Micropyle, 9 
Midrib, 2 
Mitosis, 19, 20 
Moisture, 11, 12, 76 
Molting, 64 
Monocotyledon, 24 
Mosquito, 73, 74 
Mouth, 60, 61, 68, 78, 79, 83; cavity, 
62; opening, 59; parts, 67, 69, 71, 
73 
Mucor, 31 
Muscles, 53, 66, 80 
Mycelium, 32, 33 
Nasal passages, 51, 54 
Neck, 83 
Nematocyst, 61 
Nerve, 81 
Nerve cord, 63, 66, 69; spinal, 81; 
ventral, 69 
Nervous system, 63, 66, 68, 81 
Nest building, 89 
Node, 1, 2, 24, 27 
Nostril, 79, 82, 83 
Nostrum, 38, 39 
Nucleus, 19, 58 
Nutrient, 12, 13 
Oats, 35 
Oat seed, 17 
Oat smut, 35 
Ocellus, 67 5 
Odor, 32, 35, 36 
Oil, 13 
Operculum, 78, 81 
Oral groove, 59 
Orbit, 79 
Organic matter, 22, 45, 46 
Organism, 41, 42 
Osmosis, 18, 21 
Ovary, 3, 7, 63, 80 
Oviduct, 68 
Ovipositor, 67, 68 
Ovule, 3 
Oxygen, 16, 29, 94 
Palate, hard, 51; soft, 51 
Palisade tissue, 29 
Palpus, 67 
Pancreas, 51, 80 
‘‘Parachute,’’ dandelion, 87 
Paramecium, 58, 59 
“Patent” medicine, 38, 39 
Peas, 12 
Peduncle, 3 
Pellicle, 59 
Petal, 3 
Petiole, 27 
Pharynx, 51 
Phloem, 24 
Photosynthesis, 29, 30, 78 
Phototaxis, 76 
Phototropism, 76, 77 
Pigeon, 83 
Pistil, 3, 5, 88 
Pistillate flower, 88 
Pith, 1, 2, 24 
Plant, 1, 3, 26, 29, 30, 76, 81, 85, 87, 
92 
Plastron, 82 
Plumule, 9, 10, 11 
Pod, 7 
Poles, 20 
Pollen, 3, 5 
Pollination, 3, 4, 5, 6, 7, 88 
Pollution, 48 
Pond, 84 
Potassium permanganate, 20, 46 
Potato, 14; scab, 35; tuber, 26 
Preservative, 43 
Proleg, 71 
Propagation, 26 
