ANALYSIS 



DIATOMACEOUS GENUS 



CAMPYLODISC 



BEING THE PRELUDE TO A MONOGRAPH OF THE SAME, 



BY 



JULIEN DEBY, F.R.M.S 



LIBRAR\ 

 NEW YOMK 

 BOTam 



Published for JULIEN DEBY, 01 ji Belsize Avenue, 

 South Hampstbad, L<>\i»>n. N.W. 



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