BAGTEBIOLOOY AND IMMUNITY 



Salmonella shangani, 708, 714, 739 



senftenberg, 708, 715, 741, 1597 



simsbury, 708, 715, 741 



solt, 709, 715, 741 



Stanley, 101, 713, 728, 1597 



storrs, 727. See Salm. typhi-murium 



sundsvall, 715, 742, 1597 



szentes, 709, 715, 743 



taksony, 708, 715, 741 



tel-aviv, 709, 715, 743 



tennessee, 101, 713, 734, 1597 



thompson, 707, 713, 732, 1597 



tint, 740. See Salm. newington 



typhi, 708, 714, 722, 735, and Chapter 69 

 in the tonsils, 1524 



typhi-murium, 707, 713, 722, 727, 1597, 

 1600 



typhi-suis, 707, 713, 732 



Uganda, 708, 714, 739 



unnamed type, 714 



urbana, 709, 715, 744 



vejle, 708, 714, 739 



virchoiv, 707, 713, 732, 1597 



Virginia, 714, 735 



voldagsen, 732. See Salm. typhi-suis 



weltevreden, 714, 740 



Wichita, 709, 715, 742 



worthington, 709, 715, 742, 1597 



Zagreb, 707, 713, 729 



Zanzibar, 708, 714, 740 

 Salt agglutination, 214 

 Salt sensitivity of rough variants, 299 

 Salts, antagonistic effect of, 125 



effect of on bacteria, 120 et seq. 

 on other germicides, 127 

 on pigment formation, 633, 635, 637 



mode of action of, 127 



susceptibihty of Gram-positive and Grafn- 

 negative bacteria to, 125 

 Sampling errors, assessment of, 981 et seq. 

 Sandflies, in relation to verruga periiana, 1797 

 Sandfly fever, 1959 

 Sao Paulo typhus, 1847 

 Saponin solubihty of pneumococcus, 571 

 Saprophytic acid-fast baciUi, 405 et seq. 



chemical structure of, 409 



classification of, 433 



cultural characteristics of, 414 



effect of glycerine on growth of, 420 



pathogenicity of, 428 



pigment formation by, 415, 421 

 Saprophytic viruses, 956 

 Sarcina aurantiaca, 625, 626 



conjunctivas, 626 



conjunctivae citrea, 626 



lutea, 626 



mirabilis, 626 



ureae, 626 



ventriculi, 625 

 Satellitism of H. influenzae, 790 

 Scariet fever, 1462-1478 



active immunization against, 1473 



antitoxic sera, prophylactic treatment 

 with, 1475 

 standardization of, 1476 

 therapeutic treatment with, 1475, 

 1477 



Scarlet fever, carriers of, 1469 

 chemotherapy of, 1477 

 convalescent serum in, 1477 

 diagnosis of, 1467 



Dick test in, 1078, 1080, 1465, 1467 

 epidemiology of, 1469 

 experimental production of, 1464 

 laboratory infection with, 1464 

 milk in relation to, 1471, 2039, 2049 

 " miniature," 1465 

 mode of spread of, 1471 

 prophylaxis in, 1472 

 Schultz-Charlton reaction in, 1465 

 tonsilUtis, relation of to, 1478 

 treatment of by chemotherapy, 1477 



with convalescent serum, 1477 

 types of Str. pyogenes associated with, 

 1463 

 Schick test, 1075 et seq., 1376 



age groups in relation to, 1076 



antibody content of blood in relation to, 



1377 

 blood groups, relation of, to, 1079 

 conversion rate, 1396 

 environmental conditions in relation to, 



1080 

 experimental production of diphtheria in 



positive reactors to, 1085 

 immunological significance of, 1075-1085 

 in control of active immunization, 1393- 



1396 

 in diphtheria convalescents, 1395 

 in indigenous populations, 1075-1085 

 natural immunization in relation to, 1248 

 Schick dose of toxin in, 1377, 1384 

 susceptibihty of Schick-positive reactors 

 to infection, 1377 

 Schizomycetes, classification of, 310 

 Schmitz's bacillus. See Shigella schmitzi 

 Schmorl's bacillus. See Fusiformis necro- 



phorus 

 Schools, diphtheria immunization in, 1248- 



1251, 1399 

 Schultz technique in study of anaphylactic 



shock, 1146 

 Schultz-Charlton reaction, 1465 

 Scours, black, 527 



white, 667, 1662 

 Scrapie, 1942 

 Scrub typhus, 1849, 1856 

 Scurf staphylococcus, 622, 1997 

 Sea water, bacteria in, 2015 

 Seasonal variations in immunity, 1205 

 Secondary stimulus, formation of antibodies in 



response to, 1110 

 Selenium salts. 659, 706, 1528 

 Sensitizer, Bordet's conception of in haemolysis, 



193 

 Septic sore throat borne by milk 1471, 1478, 



2049 

 Septicaemia, bacteriology of, 1490 



haemorrhagica. See PasteureUosis 

 Serological reactions, in identification of bac- 

 teria, 361. See also under Antigen-antibody 

 reactions 

 Serotherapy. See under individual diseases 

 Serotoxins, in anaphylactic shock, 1143 



