Journal of Microscopy, Vol. 5. PI. 9. 



^'- 



-H^.O. 









f-^V 







'^.M^j 



^ %<; 



f 





A/ 



^a^^ 



.Vi''' 



i^-'^-^- 



.i^^:;: 



^v^^r,: 



.-a ^*i;) ■- 



B 



^^^ 



*"%- 





./' 





^ - 



'V. 





K*^>- 



4 



0' 









6 







l*t.-"- 





^1 





■V"^!:*:-- 



^ 





tM* 



•% 





■s^ 



1^ 















\ vrip.- ,;:■',.-., .;. sit , *,?fti,.-;- .-p 











14 ^^'rf^--^:?^ 







^■t 











^r'-\*v'- 







--5— a^^^i-^^ 



.^' 





