260 



[Vol. 10 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



TABLE XIII 



HYDROGEN-ION CONCENTRATION AND TITER OF CITRIC ACID SOLUTION 



AFTER FERMENTATION BY VARIOUS FUNGI 



Organism 



Blank 



2 



3 



4 





7 







- 



11 



Solution 



Ca 



K 



NH 4 



Ca 



K 



NH 4 



Ca 



K 



NH« 



Ca 

 K 



NH 4 



Ca 



K 



NH 4 



Ca 



K 



NH 4 



Ca 



NH 4 



Ca 

 K 



NH 

 Ca* 



Ca 



K 



NIL 



Ca 



K 



NH 4 



Ca 



K 



NIL 



Ca 



NH 4 





P 



H 



8.2 

 8.2 

 7.6 

 7.8 

 7.9 

 7.5 



8.2 

 7.9 

 8.0 

 7.4 



8.0 



2.8 



2.4 

 2.8 

 2.2 

 2.4 

 2.4 



2.5 

 2.4 

 2.4 



4.2 

 4.4 

 3.7 

 6.6 

 3.8 

 3.4 



2.8 



5.8 



2.3 

 3.6 



2.6 



Cc. N/10 

 NaOH 



Period of fer- 

 mentation (days) 



170.0 

 170.0 

 171.0 



2 drops HC1 

 2 drops HC1 



1.05 



1.0 



0.9 



i.i 







2 drops HC1 



0.25 

 1 drop HC1 



1.3 



0.6 

 23.2 



136.8 



134.3 



145.9 



111.25 



119.0 



150.1 

 145.0 



136.75 



0.9 



1.75 



2.15 



1.3 



5.9 



3.3 



74.4 



9.7 



94.7 



40.3 

 29.4 



9 

 9 

 9 

 5 

 5 

 5 



9 

 9 

 9 

 5 

 5 

 5 



9 

 9 

 9 

 5 

 5 



9 

 9 

 9 



9 

 9 

 9 

 5 

 5 

 5 



9 

 9 

 9 

 5 

 5 



* Solution not changed, no growth since last change. 



