550 



INDEX 



Horsehair snakes, popular supersti- 

 tion, 4; see Neinat()nu)rpha. 



Horse leech, 316. 



Horses, and oriental sore, 86; spotted 

 fever tick, 191, 363; GaatrodU- 

 coidcs, 229; leeches, 317, 319; 

 OrnithodoruJi savignyi, 361; Otio- 

 bziis migiiini, 365; surra, 487; 

 hosts of stable-flies, oOo; hosts of 

 Gaslrophilus h(rmorrhoidalis, 516. 



Housefly, see Musca dotnesiica. 



House mosqxiito, of tropics, see Cvlex 

 quinqucjascialus; of temperate 

 zones, see Cxdex pipiens. 



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

 444, 447, 455, 458. 



HowLETT, F. M., 469, 470. 



Hume, 81. 



Hynlomma, 366. 



Hydatids, nature of, 235, 247-251; 

 distribution, 247; life history of 

 Echinocqccus, 248; development, 

 248-249; multilocular, 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, f(jr balanitis, 

 71. 



Hydrophobia, see Rabies. 



Hymenolcpis, prevention, 238; cys- 

 ticercoids in fleas, 414. 

 dlminuia, 244. 

 murina, 242. 



nana, discovery, 7; oil of choiio- 

 podium f(»r, 237; prevention, 

 238; 242 244. 

 Tinrid frdtrrna, 242. 



Hymenoptera, parasites of tsetse fly 

 pupa", 503. 



{{ypndrrmn hntn.'^, 515-516. 

 linciilii, 515-516. 



Hypopharynx, 326. 



Hypopus, 339-340. 

 nyi)0|)ygium, 4!)2. 



Hyposloiiie, 354. 



Iceland, hydatids, 247, 249, 250. 



Ichneumon flies, and Dermatobia, 

 452. 



Ichthyol, for microfilari;r, 306; in 

 ointment for chiggers, 420. 



Idaho, spotted fever, 189. 



Iu(j, v., 65. 



I.IIM.V, J., 252, 253. 



Illinois, Honnorhynchus chirki, 285. 



Immunity, natural, 19-22; artificial, 

 22-23; pa.ssive, 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 tr\Tianosomes, 

 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 tryjianosomes, 106. 



Immunology, development of, 9. 



Inad.\, R., 65. 



India, plague in, 3, 411; relapsing 

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

 oriental .sore, 85; malaria, 147; 

 fulminant malaria, 163; Rhino- 

 spnridimn, 173; dengue, 186; 

 phlebotomus fever, 188; Clotior- 

 chis sinensis, 224; Gnslrodis- 

 coides hominis, 229; Tcrnia sn- 

 ginnta and dung-eating habits of 

 cattle, 240; hookworm disease. 

 262; use of shoes, 265; land- 

 leeches, 319-320; Rhiznghjphus 

 huski, 340; Oniilhnihirus sa- 

 vigtiyi, 361; bedbugs and kala- 

 azar, 377; cat flea, 416; chigger. 

 420; malaria-carrying Anophrirs, 

 441; A&lrs adnpus, 448; Phlr- 

 bolomus WHi»/!/.s, 471; black- 

 flies, 478. 



Indian bedbug, see Ciinrx hevn'ptrnis. 



Infantile kala-azar. 82 84; distribu- 

 tion, 82; transmission, 82-83, 



