PHOiftBTRTY 





The American assöüahuin 



FCh Thc ApvanceSTent or SCIENCE, 





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NOVA ACTA 



REGIJ; SOCIBTATIS 





â 





SCIENTIARUM 



0^2= 





ÜP SAHEN SIS. 



SERiEi tertij: 



VOE.. XV. 



FASC. I.^ 



189S. 



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