xii CONTENTS 



CHAPTER XVI. 

 INDUSTRIAL APPLICATIONS OF FERMENTATIVE PROCESSES 



SECTION PAGE 



1. INTRODUCTION 210 



2. THE PRODUCTION or ALCOHOL - 211 



Beer diseases of beer whiskey wine diseases of wine ginger- 

 beer koumiss and kephir. 



3. PREPARATION OF VINEGAR 222 



CHAPTER XVII. 



INDUSTRIAL APPLICATIONS OF FERMENTATIVE PROCESSES- 



Continued. 



1. BUTTER - - 224 



2. DEFECTS IN BUTTER - 227 



3. CHEESE - 227 



4. TANNING - 231 



5. RETTING - ... 233 



6. TOBACCO- - - 235 



7. INDIGO - - 237 



8. TEA AND COCOA . 238 



CHAPTER XVIII. 

 SEWAGE AND SEWAGE DISPOSAL 



1. INTRODUCTION- . . 239 



Bacteria found in sewage. 



2. DETECTION OF SEWAGE CONTAMINATION - , 245 



3. TREATMENT OF SEWAGE - . . 246 



4. DISPOSAL WITHOUT PURIFICATION - ... 247 



5. LAND TREATMENT - . _ 248 



6. ARTIFICIAL METHODS OF SEWAGE DISPOSAL - - - . . 250 



7. EFFECT OF BIOLOGICAL TREATMENT ON PATHOGENIC ORGANISMS - 254 



INDEX --------- 256 



