CONTENTS

PAGE

Introduction

[ix]
CHAPTER I

The Biology of Bacteria

[1]
CHAPTER II

Bacteria in Water

[37]
CHAPTER III

Bacteria in the Air

[96]
CHAPTER IV

Bacteria and Fermentation

[111]
CHAPTER V

Bacteria in the Soil

[137]
CHAPTER VI

Bacteria in Milk, Milk Products, and Other Foods

[178]
CHAPTER VII

The Question of Immunity and Antitoxins

[240]
CHAPTER VIII

Bacteria and Disease

[264]
CHAPTER IX

Disinfection

[322]

Appendix

[337]