SUBJECT INDEX 



1 189 



Repulsion, electrical, 170 

 Residue substance. See Soluble substance 

 Resistance, 565. See also Heat resistance 

 of bacteria to bacteriophage, 528, 548, 551 

 of bacteriophage, 533 

 of host and parasite, 665 

 in lytic cultures, 549 

 methods of measuring, 679 

 of spores of B. mycoidcs, 291 

 variants, 81 

 Resorcinol, 640 



Respiration of bacterial cells, 219 

 Respiratory 

 coefficient, 219 

 quotients, 255 

 infections of rabbits, 622 

 Tract, Bacteria of, 650-59 

 spirochetes, 481 

 hemolytic streptococci, 653 

 Reticulo-endothelial system, 890, 1043 

 Rhahdochroniatium, 324 

 Rheumatic fever, 579 

 chemotherapy, 1133 

 in rabbits, 630 

 streptococcus antiserum, 933 

 Rhinitis, atopic, 968 

 Rhizohium radicicola, 225 

 Rhodocapsa, 324 

 Rhodothece, 325 

 Rice fermentation, 512 

 Ricin, antiricin, 740, 744 

 Ricinoleate, 180 

 Rickettsiae, 11-13 

 Rickettsia melophagi, 1 2 

 R. nipponica, 12 

 R. prowazeki, 11 

 R. ruminantium, 12 



Rideal-Walker method for disinfectants, 301 

 Riensch-Wurl screen, 355 

 Rinderpest, 518 



Ring method for surface tension, 174 

 Rivanol, 1117, 1118 

 Rivers, bacteria in, 58 

 Rocky Mountain fever. See Spotted fever 

 Roentgen rays, 745, 1040 

 Root, 332 

 hairs, 332 

 nodules 

 alfalfa, 334 

 Bacteria in, 332-40 

 acidity relations, 339 

 carbohydrate fermentation, 339 

 flagellation, 338 

 gum production, 339 

 morphology, 338 

 nitrogen fixation, 340 

 nitrogen nutrition, 335 

 serological reactions, 339 

 strain variations, 340 

 formation, 337 



nitrogen nutrition, 335 

 pea, 353 



shape, size, position, 334 

 soy bean, 7,2>2>, 334 

 tubercles, 590 

 Rot, soft, 591 t 



Rough and smooth 



colony forms, 94, 95, 597 

 motility, 598 



serological characters, 599 

 virulence, 598, 599 

 strains, 822 

 of pneumococci, 570 

 Rubella, 518 



Sacbrood, 518 



Saccharase, 274 



Saccharic acid, 235 



Sachs-Georgi reaction, 856 



Salicylic acid, 246 



Salivary gland disease of guinea pigs, 518 



Salmonella acrtrycke, 444. See also B. aertrycke 



Salmonella enteritidis, 444 See also B. enteritidis 



Salmonella group, 610 



Salmonella paratyphi, 42, 444. See also B. para- 



typhosus 

 Salmonella schottmiilleri, 42, 444 

 Salmonella suipestifer, 42 See also B. suipestifer 

 Salts, 145-51 



activity coefficients, 146 



agglutination, 814 



ammonium in fertilizers, 347 



concentration, 76 



and cohesive force, 794 



and potential and agglutination, 793 



effect on heat resistance, 294 



ions in solid, 139 



ionization in solutions, 140, 177 



mineral, regulative action, 68 



solutions 



death of Bad. coli in, 73 

 water film on, 168 



and soil fertility, 342 

 Sanfoin, cross-inoculation groups, 334 

 Sanocrysin, 11 29 

 Saponin, 180 

 Saprospira, 454, 457-62 

 Sarcina, oxidizing ferments, 215 

 Sarcina lutea, 70, 383 

 Sarcoma in chickens, 518 

 Scab, 638 



Scarlatinal 



antitoxin, 755 



toxin standardization, 747 

 Scarlet fever, 518 



streptococcus antitoxin, 955, 957 

 toxin, 961 



complement fixation test, 847 



from milk, 411, 413 



normal blood in treatment, 944 



