CONTENTS. 



CHAPTER I. 



INTRODUCTION HISTORY THE PLACE OF MICROORGAN- 

 ISMS IN NATURE 17 



CHAPTER II. 



GENERAL MORPHOLOGY REPRODUCTION CHEMICAL AND 



PHYSICAL PROPERTIES 23 



CHAPTER III. 



GENERAL BIOLOGY, INCLUDING THE CHEMICAL CHANGES 



WROUGHT BY BACTERIA . 34 



CHAPTER IV. 



METHODS OF STUDYING MICROORGANISMS STERILIZATION 



BY HEAT 39 



CHAPTER V. 



DESTRUCTION OF- BACTERIA BY CHEMICALS AND THEIR 



PRACTICAL USE 52 



CHAPTER VI. 

 THE RELATION OF BACTERIA TO DISEASE IMMUNITY . 63 



