THE DANISH 



INGOLF-EXPEDITION. 



□ 

 m 

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VOL. IV, PART 1. 



CONTENTS 



TH. MORTENSEN: ECHINOIDEA. 



PUBLISHED AT THE COST OF THE GOVERNMENT 



BY 

 THE DIRKCTION OF THE 7.QOLOG1CAL MUSEUM OF THE UNIVERSITY 



-r-V^MSX" 



COPENHAGEN. 

 H. HAGERUP. 



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