CONTENTS. ix 



CYTOTOXINS. 



PAGE 



DEFINITION 59 



CYTOTOXIN FOR LEUCOCYTES, LEUCOTOXIN 59 



NATURE OF THE CYTOTOXINS: THEIR TWO PARTS 59 



ANTI-CYTOTOXIN 59 



CYTOTOXIN FOR SPERMATOZOA, SPERMOTOXIN. ANTI- 



SPERMOTOXIN 60 



CYTOTOXIN FOR EPITHELIAL CELLS 61 



CYTOTOXIN FOR NERVE-TISSUE, NEUROTOXIN 62 



PRACTICAL APPLICATIONS IN LEPROSY 63 



PRECIPITINS. 



DEFINITION 65 



PRECIPITIN FOR CASEIN OF MILK, LACTOSERUM 66 



OTHER PRECIPITINS 66 



NATURE OF THE PRECIPITINS 67 



PRACTICAL APPLICATION 68 



Wassermann's method of differentiating albumins. 69 



(a) Used to test old blood stains 69 



(6) Used to separate different kinds of albumins. 70 



(c) Used to distinguish horse-flesh from beef. 71 



ANTI-PRECIPITINS 71 



ISO-PRECIPITINS 71 



CONCLUSION. 



CLINICAL APPLICATIONS OF IMMUNE SERA 73 



DIAGNOSTIC VALUE OF ISO-AGGLUTININS AND OF 



ISOLYSINS 74 



