LONGEVITY IN SATURNIID MOTHS 191 
TABLE 7 
ay E 
§ is DAYS 
ag == — 
<8 | | | | 
As| 3/ 4) 5] 6| 7| 8 9 10 | 11 | 12 | 13 | 14 
5-8 | 1 ha 
9 ity | 2 
10 itl! a) Bi } | 8 
11 | 1 | AA aul}. iat | 11 
12 | 1 1 | 2 
13 CU OR ate eh aed) al ie al 14 
14 Hat Re Sah Sani 1 12 
15 2 oF ath al 6 
16 cAlie | 4 
17 2 ait 5 
18 1 | 1 
19 1 1 | | 2 
20 | 
21 | 
22 
23 eae 
24 3 | 2] 2) 9 9 
25 1 | | Hp! 
26 1 peal 1 | es 
27 tI) Blt at | 8 
B3 | at a Th Te) Yeh) aw | 13 
29 mil a4]. 8 ta 6 
30 | Qi ol) A She eh Bal a | 18 
31 Sh ieeaa les Sale SulinG | 25 
6-1 Ti) a) GI B® | 12 
2 Rl it) Ql ws ly 15 
oiitesa 6H] MSile 2 ey |) L2Nne2 | 33 
aid Billeesi|y eal 2) || 1 | 25 
5 2 | 2/2) 2 | 8 
6 Ml) Bl atl) & | 2 | 12 
q | Io a 
Se) Wil Uy) a) al, sl 1 | 9 
Ole 3 1 1 | 1 7 
10 1 | 2 3 
11 3 10 nets | stelle 7 
12 | 
13 
14 2 2 
aS SN SE 0 #  e 
6| 6| 32) 29] 56] 60 41 34/10) 4] 4] 1] 283 
In comparing the means for the different classes of this lot 
(table 1) with that of the late emerging group 1910, we find the 
duration of life shorter in all cases in 1911. Since this period 
was warmer in 1911 than in 1910, this only adds one more bit 
of evidence to our temperature hypothesis. A comparison of 
table 8 with table 1 will show how in every case a variation in 
the length of life accords with a simultaneous variation in tem- 
perature. 
