IIN'DEX TO PLATES. 



TO FACE 

 PAOE 



I. Principal disease-ferments met with in wort and beer • . 6 



II. Appearance under the microscope of the deposit from "turned " 



beer 20 



III. Toruhe in process of development . . ... .72 



IV. Blycodcrma vini functioning as an alcoholic ferment. — Right 



half, showing appearance of spores just sown ; left half, their 

 appearance after an interval of submerged life 



V. Iliicor, vegetating submerged, in deficit of air 



VI. Ferment of jiivcor ........ 



VII. Yeast-cells — worn out and dissociated (left), after revival in 

 sweet wort (right) 



VIII. Fertile mould-cells from the outer surface of grapes 



IX. Various examples of the mode of growth of mould-cells from 

 the outer surface of grapes ...... 



X. One of the ferments of acid fruits at the commencement of 

 fermentation in its natural medium. .... 



XI. Sacclinrotnyccs piistoyianus, in course of regular growth . 



XII. Ferment-cells from a spontaneous fermentation just starting 



116 

 136 

 138 



148 

 152 



154 



166 



168 



184 



