MICRO-ORGANISMS 



AND FERMENTATION. 



BY 



ALFRED JORGENSEN, 



DIRECTOR OF THE LABORATORY FOR THE PHYSIOLOGY AND TECHNOLOGY OF 

 FERMENTATION, COPENHAGEN. 



TRANSLATED BY S. H. DAVIES, M.Sc. 



I-'OURTH EDITION, COMPLETELY REVISED. 



LONDON: 



CHARLES GRIFFIN AND COMPANY, LIMITED; 

 EXETER STREET, STRAND. 



1911. 

 [All Rights Reserved^ 



