GEOLOGICAL SURVEY OF CANADA. 



ALFRED E. C. SELWYN, F.G.S., DIRECTOR. 



PALi^OZOIC FOSSILS. 



VOL. II, PART I. 



f 



BY E.^BILLINGS, F.G.S. 



PALAEONTOLOGIST, G.S.C. 



IHontvcal: 



DAWSON BROTHERS. 

 August, 1874. 



