No. 2.] 



DAWSON — EOZOON CANADENSE. 



109 



Canals of Eozoon (after Mobius). Finer canals of Eozoon (after Mobius). 



Canals of modern Calcarina 

 (after Mobius). 



Canals and Tubule of Tertiary 

 Kuvtmulina (after Mobius), 









■•••■■■.■■«■ «•■•■' «'?^>:B ■• 

 ^[i*; ■■^SL-'.' ^";>"~ 



'•■•'•.i'-^i-'- ■*w*^ « 



♦ .'\,'- --s^V •-*-/.' 



. /v. .-^w .•-&-_•: 



Canals of Ca'tiostema — Upper Silurian — (original). 



