Trans. X.Z. Inst., Voi.. .\ 1.1 1 1. 



Pl.vik XI. 



J;;j:|:b:::; 



m 



m. 





sUil(l5!l!S?iivij{>J't'.r?ii|',|; 







P!|;,i:i:K; 





ii 





m 



mi: 



E:::t: 



:lll::::ei;;i:i' 





iijililslililil 



Eii=; 



\n 



ill i . ! 



^11 -5 s I ; 



iiiii 





Face p. J.8S'.] 



