xiv CONTENTS. 



Nature of antitoxic action Antimicrobic serum Lysogenic and 

 agglutinative actions Pfeiffer's phenomenon Therapeutic effects 

 of antisera Theories as to acquired immunity Natural im- 

 munity Natural bactericidal powers . . . Page 458 



APPENDIX A. 

 SMALLPOX AND VACCINATION. 



Jennerian vaccination Relations of smallpox and cowpox Bacteria 

 in smallpox The nature of vaccination .... 497 



APPENDIX B. 

 HYDROPHOBIA. 



Introductory Pathology The hydrophobic virus Prophylaxis 

 Antirabic serum Methods ...... 505 



APPENDIX C. 

 MALARIAL FEVER. 



Characters of the malarial parasite Varieties of the malarial parasite 

 Relations to the disease Methods of examination . . 515 



APPENDIX D. 

 DYSENTERY. 



Amoebic dysentery Characters of the amoeba Distribution of the 

 amceba Relations to disease Varieties of dysentery Methods 

 of examination ....... 527 



BIBLIOGRAPHY . . . . . . . -535 



INDEX . 553 



