BACTERIOLOGY AND IMMUNITY 



Corynebacteriurn diphtherias, tellurite medium 

 for growth of, 450-451 

 toxin of, 455 



action of on adrenals, 458 

 on heart muscle, 458 

 gravis, mitis and intermedius 



types in relation to, 1375 

 M.L.D. of, 238, 1384 

 virulence of in relation to toxigen- 



icity, 1372 

 virulence tests on, 1375 

 virulent and avirulent strains of, 

 458, 1375 

 equi, 452, 460, 469 

 hofmanni, 450, 453, 466, 473 

 murium, 450, 461, 470, 473, 1404 

 ovis, 450, 451, 453, 459, 460, 468, 473, 

 1403, 1649 

 diseases due to, 1403 

 relation of to C. pyogenes, 460 

 toxin of, 459 

 pseudotuberculosis murium. See C. 



murium 

 pseudotuberculosis ovis. See C. ovis 

 pyogenes, 451, 453, 460, 469, 473 



diseases due to, 1403, 1494, 1496, 1.500 

 in arthritis of animals, 1496 

 in mastitis, 1494 

 in pyelonephritis of cattle, 1500 

 relation of to C ovis, 460 

 renale, 458, 465, 470, 473 

 typhi, 462, 472 

 xerosis, 447 et seq., 467, 473 

 Cough plate in diagnosis of whooping cough, 



1663 

 Counting of bacteria, 80-82 



technique of total count, 80 

 centrifugal method, 81 

 Eberle's method, 80 

 Helber chamber method, 81 

 opacity method, 81 

 Wright's method, 80 

 technique of viable count, 81 

 dilution method, 81 

 plating method, 82 

 roU-tube method, 82 

 surface plate method, 82 

 Cow. See Cattle 

 Cow-pox, 1888 



Cresols, eifect of on bacteria, 133 

 Gristispira, halbianii, 908 

 Cross-infection of wounds, 1502 

 Crystals, mixed, formation of as analogy to 



antigen-antibody reactions, 264 

 Cultural reactions, in identification of bacteria, 

 359 

 of bacteria, terms used in description of. 

 364-366, 369 

 Culture media. See under name of medium 

 Cultures, pure, methods of obtaining, 351-357 

 by aerobic and anaerobic incubation, 



354 

 by agglutinating serum, 355 

 by dilution, 351 

 by filtration, 355 

 by heating, 354 

 by indicator media, 356 



Cultures, pure, methods of obtaining, b^; 

 Koch's plating method, 352 

 by motility, 353 

 by optimum temperature, 354 

 by pathogenicity, 356 

 by selective bactericidal substances, 



354 

 by selective media, 355 

 by shake-tube method, 353 

 by single-cell methods, 357 

 by Veillon tube, 353 

 Cystitis, 1499 



Cytochrome-oxidase, role of in bacterial oxida- 

 tions, 48, 60 

 Cytochrome systems of bacteria and anaero- 



biosis, 71 

 Cytophilic group, 198, 225 



Dale technique in study of anaphvlactic shook, 



1146 

 Danysz phenomenon, 216, 240 

 Danysz's bacillus. See Salmonella enteritidis 

 Dark-ground illumination, 18 



in study of filtrable viruses, 952 

 Decline phase of bacterial growth, 83, 97 

 Deer-fly fever. See Tularsemia 

 Dehydrogenases, bacterial, 47, 52, 59 



inactivation of, 59 

 Deneke's vibrio, 523, 525 

 Dengue fever, 1958 

 Dental caries, 754 

 Dermacentroxenus rickettsi. ^S^ee Rickettsia 



rickettsi 

 Dermatitis, contagious of sheep, 1897 

 Descriptive terms for bacteria, 364-366, 369- 



372 

 Desiccation, effect of on bacteria. 111 

 on filtrable viruses, 961 



for preserving stock cultures, 112 

 Desoxycholate, for lysing pneumococci, 571 



Leifson's medium, 659, 1528 

 Deuteroalbumose, eifect of on antibody for- 

 mation, 1123 

 " Diamonds," 1283 



Diaphragm, action of in intraperitoneal infec- 

 tions, 1040 

 Diaplyte vaccine, 1337 

 Diarrhoea borne by milk, 2049 



summer, 1580, 1585, 2049. See also 

 Enteritis of infancy 



white bacillary of chicks, 1555 

 Diastase in serum, 453 

 Diazo reaction in preparation of synthetic 



antigens, 253 

 Dick test, 1465, 1467 



age groups in relation to, 1078, 1080 



native populations, in, 1081 



puerperal fever in relation to, 1481 

 Diet as determining intestinal flora, 1990 



efifect of on immunity, 1190-1202 

 Dieudonne's medium, 515, 1424 

 Dilution method of counting, 81 



coliform bacilli in water, 2022 



use of in obtaining pure cultures, 351 

 Diminishing returns, law of in antibody pro- 

 duction, 1113 



