STUDIES ON FERMENTATION. 



151 



The same savant has given the name of saccharomyces 

 pastoriamis to the yeast of the secondary fermentations of sweet 

 liquids, such as wine that has remained sweet after its prin- 

 cipal fermentation. We have described this yeast in a Note 

 published in 1864, on the diseases of wine, from which we 

 give the following extract : — * 



Fig. 28. 



" Fig. 6 (Fig. 28 in this work) represents a very interesting 



Dr. Engel, professor of the Faculty of Medicine, at Nancy. Previously 

 to Dr. Rees' discovery, M. de Seynes {Comptes rendus, t. Ixvii., 1868) 

 had described an endogenous formation of spores in mycoderma vini, 

 particularly in the elongated cells, followed by the rupture of tho 

 mother-cell, and subsequent absorption of cell-walls and other contents 

 after the issue of the endospores, which we have just termed ascospores. 

 We ourselves had also previously called attention to those refractive 

 corpuscles which appear amongst vibrios as probably being reproductive 

 corpuscles, and we had hkewise witnessed the reabsorption of the parts 

 surrounding them. The plate on page 228 of our " Studies on the Silk- 

 worm Disease " represents the phenomena in question. 



* See Comptes rendus de VAcademie des Sciences, vol. Iviii. p. 144. 



