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I' 'Ä ^^^i) 'if 1"^ ''î' 



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îi^Ain# aid Itl e ùcxi t^k^i^^ JTMA'^P^« ' ''-Tf;« 1 Jj^^^cat-^.^' ' ' 'M 





1 1 1 ( 1 1 1 ! 



^L^ACâir:. 





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^'^^^^^<j^zX^ .sju^e^iii fig. 1. The r' N^isto^itji^vA^Jjtttinff i»eçc^ 

 '^^^ ^ a><jj,,-*<upaqiie and submetaÜic, ^<:ä^^^öt - .vi,. r?ïi-f^,. r.. 



wliicli it lias "been taken. V 

 .^ceu in tlie sharp dismemiK.ii 

 normal type of il va i te in contra 

 diopside {d)^ but is enclosed by 

 iameters. 



lg. 2 as well as PI. I 

 X. v.^^-^'-'„^>lxv,^-,....Rrt:a.Vl^i^jhird modil 



i.s dio]' 



Üiit_ja]vi:tfiifWTite for 

 t as may be 

 uveucn. This is the 

 n tig. 1, and enclose.^ 

 P. 10. INfasnified 50 



