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 ~ wl 
4 
% [X 
° 
Le eM LZ V = High yields 
z KOS QO =Low yields 
a 
rat 
4 
AC/ 
1 part KH,PO, 
Fic. 7. Diagram for series III, showing culture numbers and osmotic proportions of the 
four salts. ‘ 
