! 



THE HISTORY OF A DISCOVERY 



ns 



I was not content with examining the tvpical 

 specimens of Eozoon. but had slices prepared of 



"'^^^Zl':::'.!:'/'' ^^--^ ^^^^ ^^-«. 



from the specimen in which they were first 



recognised. (Magnified.) 







^^?(M!^33'^"' 



Fig. 29._Ca«a/. ^y Eozom, from samespecimm. 

 (Highly magnified.) 



eveo' variety of Laurentian limestone, of altered 

 Lmestones from the Cambrian and Silurian, and of 



i 



