Myiospila, 146, 307 Myriapoda, 225, 132, 257 Nagana, 165, 214 Nasal infestation, 114, 133 Necrobia, 135 Nematode parasite, 182 Nepa, 28 Nephrophages sanguinarius, 132 Nettling insects, 43 larvæ, poison of, 53 Neurasthenia, 89 Nits, 86 North African Relapsing Fever, 234 Norwegian itch, 77 No-see-ums, 109 Notœdres, 269 cati, 78 Notonecta, 28, 277 Notonectidæ, 30 Nott, Dr. Josiah, 2 Nuttall, 34 Occipital headaches, 138 Oecacta, 288 Oeciacus, 279 Œsophageal diverticula, 35 Oestridæ, 112, 136 Oestris ovis, 113 Oestrus, 298 oocyst, 192 ookinete, 192 Opsicoetes personatus, 32 Opthalmia, 155 nodosa, 52 Oriental sore, 221 Ornithodoros, 65, 260 moubata, 220, 230 Orthotylus flavosparsus, 33 Ornithomyia, 286 Oroya, 253 Oscinus, 297 Otiobius, 259 megnini, 65 Otodectes, 271 Pangonia, 294 Pappatici fever, 96 Parasimulium, 286 Parasite, 3, 57, 131, 134, 182 accidental, 3, 131, 134 facultative, 3, 57, 131 nematode, 182 stationary, 57 temporary, 57 true, 3 Parasitism, accidental, 134 Pathogenic bacteria, 152 organisms, 144, 164 Pawlowsky, 81 Pediculoides, 267 ventricosus, 69, 72 Pediculosis, 81 Pediculus, 275 corporis, 84, 233, 238 humanus, 82, 173 Pellagra, 162, 246 Pernicious fever, 186 Pest, 166 Phidippus audax, 19 Philæmatomyia, 306 Phisalix, 13, 43 Phlebotomus, 289 papatasii, 94 verrucarum, 254 vexator, 95 Phora, 295 Phormia, 136 Phormictopus carcerides, 13 Phthirus pubis, 85, 275 Phortica, 296 Pieris brassicæ, 56 Piophila, 297 Piophila casei, 136, 137 Piroplasmosis, 222 Plague, 166 bubonic, 166, 169, 170 pneumonic, 167 Plasmodium, 186 Platymetopius acutus, 33 Plica palonica, 83 Pneumonic, 166 plague, 167, 173 Poisoning by nettling larvæ, 53 Poison of spiders, 7 Pollenia, 308 rudis, 146, 147 Primary gland, 28 Prionurus citrinus, 20 Prosimulium, 286 Protocalliphora, 136, 312 Protozoan blood parasite, 165 Pseudo-tubercular, 52 Psorophora, 293 Psoroptes, 270 Psychodidæ, 94 Pulex, 120, 124, 126, 172, 317 cheopis, 172 irritans, 124 penetrans, 126 serraticeps, 120 Pulvillus, 150 Punkies, 109 Pycnosoma, 308 Rasahus, 280 thoracicus, 32 Rat fleas, 120, 124, 171 Rat louse, 213 Red bugs, 70-72 Reduviidæ, 31 Reduviolus, 280 Reduvius, 282 personatus, 32 Redwater fever, 222 Relapsing fever, 230, 233 Rhinœstrus nasalis, 115 Rhipicentor, 264 Rhipicephalus, 264 Rhizoglyphus, 269 Rhodnius, 281 Rocky Mountain Spotted Fever, 226 spotted fever tick, 67 Russian gad-fly, 115 St. Vitus's or St. John's dance, 8 Salivary syringe, 28 Sand-flies, 109, 250 Sanguinetti, 11 Sarcophaga, 136, 142, 143 Sarcophila, 302 Sarcopsylla, 317 penetrans, 126 Sarcoptes, 270 minor, 78 scabiei, 73 Sarcoptidæ, 72 Scabies, 72, 73, 74, 75 Scaurus striatus, 177 Schaudinn, 34 Schizont, 189, 190 Scholeciasis, 134 Scolopendra morsitans, 26 Scorpions, 20 poison of, 21 Screw worm fly, 140 Sepsidæ, 296 Sepsis, 136, 297