6 CONTENTS. 



CHAPTER XL 



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 



PART III. 

 PATHOGENIC BACTERIA. 



CHAPTER I. 



SUPPURATION. STAPHYLOCOCCI ; STREPTOCOCCI ; BACILLUS PYO- 



CYANEUS; MICROCOCCUS TETRAGENUS . . .. 159-172 



