PREFACE TO ENGLISH EDITION. 



My first idea of placing before English, brewers a translation 

 of " Etudes sur la Biere " was meagre in the extreme, compared 

 with the final realization of it as it appears in the following 

 pages. 



Seeing the vast importance of Pasteur's work from a practical 

 point of view, after writing a review of it for the Brctcens' 

 Juurnaly I determined to procure, at any rate for the use of my 

 pupils, a literal translation, illustrated by photo-lithographic 

 copies of the original plates, the thankless task of executing 

 this preliminary translation for so limited a number of readers 

 being most kindly and generously carried out for me by my 

 friend Mr. Frank U. Waite, who, being engaged with me at 

 the time in practical brewing operations, shared my views as 

 to the value of the original work. 



It was on the completion of this translation that my views 

 and desires expanded. The more I studied the work, the more 

 I was convinced of its immense value to the brewer as 

 affording him an intelligent knowledge of the processes 

 and materials with which he deals, but over and above all 

 this, it was impossible not to feel that the researches of such 



