

12 



^> 





J 



14 



^'™^ 



18 



22 



16 \> 



I 1 



^=5^; 



'7 a<r- 



19 



,i-^ "^x 



23 \l- _.--' 



24 



25 



^ 



Plate 7 

 Pollen grains and miscellaneous particles. 



