CONTENTS 



PAGE 



NATURE OF AGGLUTININS AND OF THE AGGLUTINATION 



REACTION ...................................... 39 



AGGLUTINOIDS ...................................... 39 



GROUP AGGLUTININS : ............................... 43 



ABSORPTION METHODS FOR DIFFERENTIATING BETWEEN 



A MIXED AND A SINGLE INFECTION ................ 46 



FORMATION OF AGGLUTININS ACCORDING TO THE ^IDE- 

 CHAIN THEORY, RECEPTORS OF FIRST, SECOND, AND 



THIRD ORDER .................................. 47 



Bacteriolysins and Haemolysins .................. 5 o 



HISTORICAL ........................................ 50 



FFEIFFER'S PHENOMENON ............................ 51 



HAEMOLYSIS ........................................ 52 



NATURE OF H^MOLYTIC SERA .................... . . 54 



ANALOGY BETWEEN THE BACTERIOLYTIC AND HVEMO- 



LYTIC PROCESSES ............................... 57 



EHRLICH AND MORGENROTH ON THE NATURE OF HAEMO- 



LYSIS .......................................... 58 



THEIR THREE CLASSIC EXPERIMENTS ................ 59 



NOMENCLATURE ................................... 63 



ROLE OF THE IMMUNE BODY ............. .- ......... 64 



ON WHAT THE SPECIFICITY DEPENDS ................ 65 



DIFFERENCE BETWEEN A SPECIFIC SERUM AND A NOR- 



MAL ONE ......................... .. ............ 66 



DIVERGING VIEWS OF EHRLICH AND BORDET ........... 67 



THE SIDE-CHAIN THEORY APPLIED TO THESE BODIES. . . 68 



MULTIPLICITY OF COMPLEMENTS ...................... 70 



THE BORDET-GENGOU PHENOMENON; NEISSER- 



SACHS BLOOD TEST ............................. 71 



NORMAL SERUM, ITS H^MOLYTIC AND BACTERIOLYTIC 



, ACTION ........................................ 73 



ACTIVE AND INACTIVE NORMAL SERUM ....... '. ...... 75 



ACTION NOT ENTIRELY SPECIFIC .................... 77 



MULTIPLICITY OF THE ACTIVE SUBSTANCES ........... 78 



DIFFERENCE BETWEEN A NORMAL AND A SPECIFIC IM- 



MUNE SERUM ................................... 79 



NATURE OF THE IMMUNE BODY PARTIAL IMMUNE 



BODIES OF EHRLICH. . 82 



