174 SO URGES F EN ERG Y IX ANAEROBJOSIS 



TABLE 21 



Utilization of Various Compounds as Mother Substances for the 

 Aekobic Fermentations of Protozoa. 



The sign -(- indicates that the compound is utilized, — that it is not 



utilized, ? that the utilization is questionable, 



and that no test was made. 



lOnly the consumption of the sugars was demonstrated, not the 

 acid formation. Since it is known, however, that these organisms 

 oxidize glucose only partially, the above data have been included 

 on the assumption that other sugars are utilized in a similar manner. 



2The author states that he tested 16 carbohydrates and that only 

 five — those we mark in the table with a + sign — were fermented. He 

 does not list the other substances employed. 



