GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 

 ALFEBD E. C. SBLWYN, C.M.G., LL.D., F.E.S., Director. 



CONTRIBUTIONS 



TO THE 



MICRO-PALEONTOLOGY 



OF THE 



CAMBRO-SILURIAX ROCKS OF CANADA. 



PART II. 



BY 



E . O . U L R I C H . 



PUBLISHED BY AUTHORITY OF PARLIAMENT. 



MONTREAL : 

 WILLIAM FOSTER BROWN & CO. 



1889. 



