GRYLLOBLATTA 
1S50] 
Edwards and Nutting — Thermobia and Grylloblatta 
39 
< 2 > 0*0 
o o* 
<*88°o ° 
oo o 
cno o o 
o ODO 
|Po 
1 1 
> o 
j — 
31Vd 1UV3H 901 
* 2 
ro 
Grylloblatta (crosses). Activation energy calculated from equation: 
^4.58(1°^ ~ j°lM 
