CONTENTS vii 



PAGE 



ACTION NOT ENTIRELY SPECIFIC 74 



MULTIPLICITY OF THE ACTIVE SUBSTANCES .... 75 

 DIFFERENCE BETWEEN A NORMAL AND A SPECIFIC IM- 

 MUNE SERUM 76 



NATURE OF THE IMMUNE BODY PARTIAL IMMUNE 



BODIES OF EHRLICH 79 



METCHNIKOFF'S VIEWS 81 



SUPPORT FOR EHRLICH'S VIEW 82 



ANTIH^EMOLYSINS: THEIR NATURE ANTI-COMPLEMENT 



OR ANTI-IMMUNE BODY 84 



ANTI-COMPLEMENT 85 



ANTO-ANTICOMPLEMENTS . . 88 



FLUCTUATIONS IN THE AMOUNT OF THE ACTIVE SUB- 

 STANCES IN SERUM , 90 



SOURCE OF THE COMPLEMENTS LEUCOCYTES AS A 



SOURCE OTHER SOURCES 92 



STRUCTURE OF THE COMPLEMENTS COMPLEMENTOIDS 93 



ISOLYSINS AUTOLYSINS ANTI-ISOLYSINS ..... 95 



DEFLECTION OF COMPLEMENT 97 



DEUTSCH'S H^EMOLYTIC BLOOD TEST 102 



PRACTICAL VALUE OF BACTERICIDAL SERA 104 



Precipitins 106 



DEFINITIONS . 106 



BACTERIAL PRECIPITINS 107 



LACTOSERUM OTHER SPECIFIC PRECIPITINS .... 107 



SPECIFICITY OF THE PRECIPITINS . . . 108 



NATURE OF THE PRECIPITINS no 



PRACTICAL APPLICATION , , . m 



THE WASSERMANN-UHLENHUTH BLOOD TEST ... 112 



IMMUNIZING THE ANIMALS 113 



COLLECTING THE SERUM 114 



THE TEST 115 



APPEARANCE OF THE REACTION 116 



DELICACY OF THE PRECIPITIN TEST ,,,,. 117 



