572 
The Philippine Journal of Science 
1920 
tures in each set may be regarded as comprising a series of 
three-salt solutions similar to the series employed by Shive. The 
diagram (TO) of fig. 7 represents Shive’s series, consisting of 
Shive, TO ^ 
P , 
'2? V= High yields 
□ = Low yields 
Fig. 7. Diagram for series III, showing culture numbers and osmotic proportions of the 
four salts. 
