COAL MEASURES 



PIAILX 



Gomatitcs 1. iiatiaeasis- If dorsal outline, of sefita.. l h ventral outline of septa, 1/autiliis 

 Zfi?jrrcvtus reduced A.Z^ section, of same nai, six.e,A T .3.<w>jib'j::iJ?atux nett.sixc.3? section, 

 of same, smaller in, //vulval fiaffulcv.4.ain-iboiuUu enlarged . 4 ' a natural size. 



