6 CONTENTS. 



CHAPTER XI. 



PAGES 



POISONOUS PRODUCTS OF BACTERIA 98-100 



CHAPTER XII. 

 INFECTION 101-112 



CHAPTER XIII. 

 IMMUNITY . ; . . 113-123 



CHAPTER XIV. 



ANTITOXIN. SOURCE, NATURE, AND ACTION. ARTIFICIAL PRO- 

 DUCTION AND METHOD OF ADMINISTRATION ...... 124-129 



CHAPTER XV. 

 EXAMINATION OF AIR, SOIL, AND WATER 130-139 



PART II. 



CHAPTER I. 



NON-PATHOGENIC BACTERIA. SCHIZOMYCETES 141-148 



CHAPTER II. 



MOULDS OR FILAMENTOUS FUNGI. HYPHOMYCETES 149-155 



CHAPTER III. 



YEASTS OR BUDDING FUNGI. SACCHAROMYCETES 156-158 



PAET III. 

 PATHOGENIC BACTERIA. 



CHAPTER I. 

 SUPPURATION. STAPHYLOCOCCI ; STREPTOCOCCI ; BACILLUS PYO- 



CYANEUS; MICROCOCCUS TETRAGENUS 159-172 



