

Quart. Joitrn. Micr. Sci Vol 67, N. S., PI. 2 



7 



^:^=^. - 6 







<*'-V'-i»i* 







*4UAI^^*' 



20 







/u» 



!rt«n 





ri"-^*t^, 34 







...•r 



Scale of Fi^s. o^ mm. 



1 1 1 1 1 1 



•OSm/m. 

 Sccde of Figs. 1.2 6.20.2! 25.26.32.3i. 



