The Biology of the Roach 65 
Days Days Days 
Roach between between between 
Number Ist & 2nd 2nd & 3rd 3rd & 4th 
5 10 ie ase 
6 9 fe is 
| 11 RG, aoe 
8 6 15 st 
9 19 be in 
10 6 12 ya 
11 11 ie ae. 
12 8 16 og 
13 8 sds ie 
14 8 8 pee 
15 8 we ee 
16 10 13 ae 
17 10 13 ae 
18 9 12 mit 
19 23 ae -- 
20 11 ies a 
21 13 8 8 
22 13 6 10 
23 12 6 11 
24 12 5 11 
25 6 10 == 
26 4 7 -< 
27 4 6 -- 
28 4 9 aia 
29 12 -< a 
30 11 =< mer 
31 9 -= oe: 
32 9 -- “ 
33 9 10 14 
34 10 14 i 
