EFFECTS OF REORGANIZATION ON VITALITY 



555 



by Maiipas for only three series of individuals, and data for only 

 one series (Stylonychia pvsiulata) were published in full. The 

 graph shown in Fig. 231 was constructed from these published 

 data and it certainly appears to bear out his conclusion concerning 



Stylonychia pustulata 



25.2° 



12 3 15 6 7 8 9 10 11 12 13 



Stylonychia mytilus 



Fig. 231. 



-Vitality graphs of Stylonychia pustulata and S. mytilus from records by 

 Maupas. 



