TABLE OF COIsTTElSTTS, 



page- 

 Author's Dedicatiox .......... V 



,, Preface vii 



Translator's Preface ix 



CHAPTEIl I. 



ON THE IXTIJIATE RELATIOX EXISTING BETWEEN THE DETERIORATION 

 OF BEER, OR THE "WORT FROM WHICH IT IS MADE, AND THE 

 PROCESS Ot BREWING 1 



CHAPTER II. 



ON THE CAUSES OF THE DISEASES WHICH AFFECT BEER AND WORT. 



§ I. Ever}- unliealthy change in the qualitj" of beer coincides -ndth 

 a development of microscopic germs which are alien to the 

 pure fei-meut of beer . . . . . . . . lf> 



§ II. The absence of change in wort and beer coincides with the 



absence of foreign ors-anisms ...... 25 



.CHAPTER III. 



ON THE ORIGIN OF FERMENTS TROPERLY SO CALLED. 



§ I. On the conditions which cause variations in the nature of the 



organized prodncts existing in infusions .... 33 



