PI. 12 



Ti^.2 



fiQ.3. 



Y16.S. 



Fid. 1. 



Kg. 6^ 



F16.8. 



it'L!^'''- '' 



■>y 



Fid. 9. 



IS' 



Fip.4 . 



_f~«5y..^ 



Fid. 7. 







Fid. 10 



P.lacker'baueT adnat.in lap, del. 



Imp,Becquet a Pans. 



