Figure 134. A. Population growth curves plotted on arithlog coordinates of Euglena 

 (El and Ej) from Jahn (1929) ; Paramecium aurelia (PA), P. caudatum (PC), Stylony- 

 chta pustulata (SP) from Cause (1934); and M. Mayorella palestineiisis from Reich 

 (1938). B. Population growth curves plotted on Cartesian coordinates (same data). 



