STUDIES ON FERMENTATION. 



141 



this rather large proportion of alcohol, a clear sign of undoubted 

 fermentation, the plant had jdelded no conidla at all, nor any 

 cell-globules of ferment. Some of the filaments, however, were 

 larger than the rest, and exhibited irregularly-shaped swellings, 

 which in some cases were of enormous size. Whilst the natural 

 mycelial filaments, by which wx mean the vegetating part of 

 mucor, which were supplied with abundance of air, only measured 

 -5^ of a millimetre* in diameter, the filaments that had grown 

 probably with an insufficiency of oxygen, and performed the 

 functions of ferment, measured ^-f^,,, and the swellings as much 

 as ^-f^ of a millimetre in diameter, as represented in Fig. 24. 



Fig. 24. 



In concluding this paragraph, we ma}'- mention a very able 

 research on fermentation which we have lately studied, the 



* [0-000089 in., 0-00026 in. and 00089 in. respectively.] 



