

TAKL! IX. 



Mean 24-hour rates of enlargement for consecutive 1-day 

 observation periods, for Pyth ra,cystis, as determined "by measur- 

 ing the ordinates of the smoothed graphs of figure 2. 



?: 



Temperature jPirst day 



Second day Third day Fourth day Fifth day 



Peg. C. 



mm 



mm 



IBB 



IDT! 



mm 



8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 



0.3 

 0.5 

 0.7 



1.0 



1.3 



1.6 

 2.0 



2.4 



2.8 

 3.3 

 3.7 

 4.2 

 4.7 

 5.1 

 5.7 

 6.1 

 6.6 



7.1 



7.6 

 8.0 

 8.1 

 7.8 

 7.1 

 6.1 

 4.8 

 2.6 

 0.9 

 0.4 

 0.0 



0.8 

 1.2 

 1.7 

 2.3 

 2.9 



3.5 

 4.1 



4.8 



5.5 

 6.2 

 6.8 

 7.4 

 8.0 

 8.6 

 9.1 

 9.6 

 9.9 



10.2 

 10.4 



10.4 

 10.2 

 9.4 

 7.8 

 5.3 

 0.7 

 0.0 



0.9 

 1^4 

 1.9 



2.5 

 3.0 



3.6 

 4.3 



5.0 



5.7 



6.5 



7.1 



8.0 



8.7 



9.3 



9.8 



10.2 



10.4 



10.4 



10.3 



10.1 



9.6 



8.7 



7.4 



3. 5 



0.0 



1.1 

 1.6 



2.2 



2.8 

 3.4 

 4.0 

 4.7 

 5.4 



6.2 



6.8 



7.5 



8.3 



8.9 



9.5 



9.9 



10.3 



10.5 



10.4 



10.2 



9.8 

 9.3 

 8.3 

 6.9 

 1.5 

 0.0 



1.4 



2.0 



2.4 

 3.1 

 3.7 



4.2 

 5.0 



5.8 



6.5 

 7.2 

 8.0 



8.7 



9.2 



9.7 



10. 



10.2 



10.3 



10.1 

 9.9 



9.5 

 8.8 

 7.9 

 6.4 

 0.5 

 0.0 



73 



