838 THE GUM AND BYPRODUCTS OF nACTERIUM SACCHARl. 



hours. The residue on the porcelain melted at 61° (palmitic acid 

 m.p. 62") and that absorbed by the porcelain and recovered from 

 it melted at 44° (lauric acid m.p. 43°). 



During the fermentation of saccharose, carbon dioxide was 

 evolved. This was shown by drawing the air in small culture 

 flasks through baryta water. The method of procedure has been 

 described on page 548 of these Proceedings. Ethyl alcohol was 

 also produced. This was separated from the culture media in 

 the manner described on page 344. 



Summary. — In media containing saccharose, Bad. sacchari 

 produces a galactan gum, carbon dioxide, ethyl alcohol, lauric, 

 palmitic, succinic, acetic and formic acids. 



