INDEX 



787 



Ophthalmic reactions (cont.): 



nucleoprotein in, 457 



specificity, 458 

 Opsonins 



agglutinins, relation to, 431 



antiopsonins, 398-401 



antiphagins, 398 



Impedin, 399 



in pneumonia, 401-402, 438, 439 



method for demonstrating, 429, 431 



normal, 393, 395-397 



sensitization of pneumococci, 391- 

 395 



See also Phagocytosis 

 Optical rotation of polysaccharides, 

 246, 254, 255, 257, 273, 274, 281, 

 291, 292, 293 

 Optochin, 512-520 



adjuvant action with immune se- 

 rum, 518 



base, 512, 516, 518 



drug-fastness, 519-520 



effect in dissociation, 144-145 



effect on virulence, 519 



germicidal action, 513, 514, 515 



heightened susceptibility of Pneu- 

 mococcus to, 520 



specificity, 520 



toxicity, 517 

 Oral administration of antigens, 348- 



351 

 Orchitis, Pneumococcus in, 226 

 Osteomyelitis, Pneumococcus in, 226 

 Otitis, Pneumococcus in, 20, 226, 227 

 Oxidation and reduction, 71-82 



analysis of reaction, 80-81 



B. acidophilus, 75 



B. bulgaricus, 75 



diphtheria bacilli, 77 



effect of catalase, 78 



hydrogen peroxide, 44, 74-82 



methemoglobin, 71-74 



methylene blue, 77 



oxidases, 71, 75 



peroxide, 71, 74-82 



reversibility of action, 81 



staphylococci, 77 



streptococci, 77 



Oxidation and reduction (cont.) : 

 8. haemolyticns , 75 

 8. viridans, 75 

 xanthoprotein, 75 



Panophthalmia, Pneumococcus in, 227 

 Parotitis, Pneumococcus in, 19, 226 

 Passive immunity. See Immunity, 



passive 

 Passive sensitization. See Sensitiza- 

 tion, passive 

 Pathogenicity of Pneumococcus 

 for experimental animals 

 birds, 196 

 cats, 193 



dogs, 7, 10, 16, 193-195 

 guinea pigs, 7, 185-187 

 horses, 195-196 

 mice, 7, 187-190 

 monkeys, 191-193 

 rabbits, 7, 179-185 

 rats, 190-191 

 for man, 7, 214-237, 435 

 See also Virulence 

 Peptonase, in Pneumococcus, 66 

 Peptone 



effect on growth, 38 

 effect on hemolysis, 84 

 Pericarditis, Pneumococcus in, 8, 9, 



16, 226 

 Peritonsillar abscess, primary, Pneu- 

 mococcus in, 20 

 Peroxidase in peroxide formation, 76 

 Peroxide formation 

 by B. acidophilus, 75 

 by B. bulgaricus, 75 

 by Pneumococcus, 44, 74-82 

 by S. aureus, 76 

 by 8. haernolyticus, 75, 76 

 by 8. mucosus, 76 

 by 8. viridans, 75 

 effect of bacteria, 78 

 effect of blood, 78 

 effect of catalase, 78 

 effect of cell washings, 77 

 effect of gelatin, 77 

 effect of glucose, 77 

 effect of lactic acid, 77 



