CONTENTS { x 



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METCHNIKOFF'S VIEWS 84 



SUPPORT FOR EHRLICH'S VIEW 85 



ANTIH^MOLYSINS: THEIR NATURE ANTI-COMPLEMENT 



OR ANTI-IMMUNE BODY 86 



ANTI-COMPLEMENT 88 



FLUCTUATIONS IN THE AMOUNT OF THE ACTIVE SUB- 

 STANCES IN SERUM 91 



SOURCE OF THE COMPLEMENTS LEUCOCYTES AS A 



SOURCE OTHER SOURCES 93 



STRUCTURE OF THE COMPLEMENTS COMPLEMENTOIDS. . . 94 



ISOLYSINS AUTOLYSINS ANTI-ISOLYSINS 97 



DEFLECTION OF COMPLEMENT 100 



PRACTICAL VALUE OF ANTI-BACTERIAL SERA 104 



Precipitins 107 



DEFINITIONS 107 



BACTERIAL PRECIPITINS 108 



LACTOSERUM OTHER SPECIFIC PRECIPITINS 108 



SPECIFICITY OF THE PRECIPITINS 109 



NATURE OF THE PRECIPITINS in 



PRACTICAL APPLICATION 112 



THE WASSERMANN-UHLENHUTH BLOOD TEST 113 



IMMUNIZING THE ANIMALS 114 



COLLECTING THE SERUM 115 



THE TEST 116 



APPEARANCE OF THE REACTION 117 



DELICACY OF THE PRECIPITIN TEST 118 



OTHER APPLICATIONS OF THE PRECIPITIN TEST , . . 1 18 



ANTIPRECIPITINS ISOPRECIPITINS 119 



Cy totoxins 121 



DEFINITION, LEUCOTOXIN NATURE OF THE CYTOTOXIN 



ANTICYTOTOXIN 121 



Nt v UROTOXIN 122 



SPERMOTOXIN 123 



COMMON RECEPTORS 124 



CYTOTOXIN FOR EPITHELIUM 124 



CYTOTOXINS BY THE USE OF NUCLEOPROTEIDS 125 



Opsonins 127 



HISTORICAL 127 



