550 



INDEX 



Horsehair snakes, popular supersti- 

 tion, 4; see Nematomorpha. 



Horse leech, 316. 



Horses, and oriental sore, 86; spotted 

 fever tick, 191, 363; Gastrodis- 

 coides, 229; leeches, 317, 319; 

 Orniihodorus savignyi, 361; Otio- 

 bius megnini, 365; surra, 487; 

 hosts of stable-flies, 505; hosts of 

 Gasirophilus hwmorrhoidalis, 516. 



Housefly, see Mvsca domestica. 



House mosquito, of tropics, see Cvlex 

 quinquefasciatits; of temperate 

 zones, see Culex pipiens. 



Howard, L. O., 148, 429, 437, 442, 

 444, 447, 455, 458. 



HowLETT, F. M., 469, 470. 



Hume, 81. 



Hyalomma, 366. 



Hydatids, nature of, 235, 247-251; 

 distribution, 247; life history of 

 Echinococcus, 248; development, 

 248-249; mtiltilocular, 249; ef- 

 fects on host, 250; prevention, 

 250-251. 



Hydrocyanic acid, for fumigation, of 

 bedbugs, 383, 385; method, 383- 

 385; effectiveness, 385-386; for 

 fleas, 421. 



Hydrogen peroxide, for balanitis, 

 71. 



Hydrophobia, see Rabies. 



Hymenolepis, prevention, 238; cys- 

 ticerooids in fleas, 414. 

 diminuta, 244. 

 ■murina, 242. 



nana, discovery, 7; oil of cheno- 

 podiimi for, 237; prevention, 

 238; 242-244. 

 nana fraterna, 242. 



Hymenoptera, parasites of tsetse fly 

 pupae, 503. 



Hypoderma bovis, 515-516. 

 lineata, 515-516. 



Hypopharynx, 326. 



Hypopus, 339-340. 



Hypopygium, 492. 



Hypostome, 354. 



Iceland, hydatids, 247, 249, 250. 



Ichneumon flies, and Dermatobio, 

 452. 



Ichthyol, for microfilariae, 306; in 

 ointment for chiggers, 420. 



Idaho, spotted fever, 189. 



Ido, Y., 65. 



Ijima, J., 252, 253. 



Illinois, Hormorhynchus clarki, 285. 



Immunity, natural, 19-22; artificial, 

 22-23; passive, 22; of Protozoa 

 to drugs, 34-35; in relapsing 

 fever, 47; in infantile kala-azar, 

 84; in oriental sore, 87; in 

 Rhodesian sleeping sickness, 94; 

 reactions among trypanosomes, 

 96-97; in malaria, 162-163; 

 in yellow fever, 185; in dengue, 

 187; in phlebotomus fever, 188; 

 in trichiniasis, 294-295. 



Immunization, history, 8-9; in re- 

 lapsing fever, 47; in infectious 

 jaundice, 68; in oriental sore, 

 88; against trypanosomes, 106. 



Immunology, development of, 9. 



Inada, R., 65. 



India, plague in, 3, 411; relapsing 

 fever, 42, 43, 44; kala-azar, 77; 

 oriental sore, 85; malaria, 147; 

 fulminant malaria, 163; Rhino- 

 sporidium, 173; dengue, 186; 

 phlebotomus fever, 188; Clonor- 

 chis sinensis, 224; Gastrodie- 

 coides hominis, 229; Tmnia sa- 

 ginata and dung-eating habits of 

 cattle, 240; hookworm disease, 

 262; use of shoes, 265; land- 

 leeches, 319-320; Rhizoglyphus 

 buski, 340; Orniihodorus sa- 

 vignyi, 361; bedbugs and kala- 

 azar, 377; cat flea, 416; chigger, 

 420; malaria-carrying Anop/ieJes, 

 441; Aedes calopus, 448; Phle- 

 botomits minvius, 471; black- 

 flies, 478. 



Indian bedbug, see Cimex hemipterus. 



Infantile kala-azar, 82-84; distribu- 

 tion, 82; transmission, 82-83, 



