I 



341 



Table VIII. SJiowing the actual and calculated time from pupation to emer- 

 gence for all of Glenn's Olney data, l'.)l'i-1917, summing velocity values 

 from Table I to a normal total of (i'/SO (equivalent to 270 substitu- 

 tion-quotient) and averaging the results by groups of 30 

 individuals. 



Compare the first two items of this table with the means of 30 individuals shown 

 In Table VII. The mean ratio of actual to calculated time for each generation is 

 given here to aid in determining; the effects of factors other than temperature and 

 humidity. 



Hibernated Generation 1915 



13.8 

 12.7 

 11.7 

 10.9 

 9.9 

 9.8 

 10.6 

 10.9 

 11.4 

 10.3 

 11.1 

 11.9 



Second Generation 1915 



19.3 

 20. S 

 24.2 

 23.5 

 21.7 



Mean 



13.0 

 13.6 

 13.1 

 13.5 

 13.0 

 10.9 

 10.9 

 9.9 

 10.1 

 10.4 

 10.5 

 11.1 



101.1 

 105,0 

 109.0 

 106.3 

 107.4 



105.8 



97.8 



102.3 



93.1 



100.0 



100.0 



103.0 



98. 1 



96.3 



97.3 



94.1 



100.9 



1U0.9 



275.8 

 252.3 

 268.4 

 271.8 

 276.2 

 266.4 

 258.6 

 262.3 

 252.5 



271.4 

 283.9 

 290.0 

 284.8 

 28S.5 



254.7 

 270.5 

 261.6 

 280.8 

 275.1 

 253.7 

 264.3 

 264.8 

 271.-3 

 275.0 

 258.0 

 277.0 

 256.0 

 257.7 

 266.3 



