158 



ri.ATi: !!'. 



Jldlosloiiiii niridhilc Ilrich luU 



1. Sm-raco. slidwiiifi a iiiaciila and lliiii-wallcd zi>;r(ia, x i). 

 la. ]iOii.!;i1ii(liiiaI section, x Is. 

 ]l(. Typical loiijiitiidiiial s(><ti<'n, x IS. 



Ic. A (MHii|H('ssc(l siK'ciiiH"). naiiii.il size. All s|i('ciiii('iis from 

 AVfislmi-i,', I ml. 



