STATE GEOLOGIST. 187 



Thomson, W. Palseozoic crinoids. <^N'ature, vol. iv, p. 72. 1S71. 



Remark on Eozoon. 

 ViLAXOvA Y l^EiKA, JuAN. Estructura de las rocas serpentinosas y el Eozoon 

 cauadense. <lSoe. Espan. Hist. Nat., vol. iii, parts 2 and 3. 1874. 



Concludes that Eozoon canadense is not the remains of an organism. (Nicholson in 

 White and Nicholson's Bib. p. 130.) 

 Whitney, J. D., and M. E. Wadsworth. Remarks on the Eozoon from the 

 Azoic System and its subdivisions. <^Bull. Miis. Comparative ZooL, vol. 

 vii, pp. 528-538. 18S4. 

 WiKCHELL. N. H. The cunriferous series in Minnesota. < Jm. Assc. Adv. 

 Sci. 18>0, p. 425. Reprinted in the ninth annual report of the Minnesota 

 survey. 



A remark on the probable Silurian or Cambrian age of the Eozoon-bearing rocks of 

 Canada, based on the age of the Norian rocks of Minnesota. 

 WiNCHELL, N. H. Geology of Minnesota, vol. i, of the final report, p. 283. 

 18S4. 



Aote on Eozoou. 



