174 INDEX 



PAGR 



Obermayer and Pick, nature of precipitins no 



Opsonins 125 



distinct antibodies 128 



historical 125 



structure of 128 



Opsonic index 128 



Park, on agglutinins 42 



diphtheria antitoxin 2 



serum rashes 139, 145 



antitoxic globulins 12 



Pearce, cytotoxic sera 124 



Pfaundler, group agglutination 40 



thread reaction 35 



Pfeiffer, alexin and leucocyte 92 



Pfeiffer's phenomenon 48 



Phytotoxins 21 



Pick, fractionation of immune sera 19 



v. Pirquet and Schick, serum sickness <,.. 138 



Poison spectra, Ehrlich's . 25 



Precipitins 106 



bacterial 107 



nature of no 



test tube reaction only 145 



Precipitins, in serum sickness 145 



specificity of 108 



Precipitin blood test . . 112 



Prototoxoids 36 



Pro zone in agglutination 38 



Rashes after serum injections 138 



Reactivation of sera 52 



Receptors 9 



various orders of 43 



Ricin 21 



Rosenau, on hypersusceptibility 141 



Rostoski, bacterial precipitins 107 



precipitin reaction 145 



Sachs, blood test , . 70 



snake venoms 135 



