INTRODUCTION. XI 



said to be the " lamellated," and the latter the " acervuline " 

 variety. 



On the Occurrence of Organic Remains in the Laurentian Rocks 

 of Canada. Sir W. E. Logan. Q.J.G.S. vol. xxi. pp. 45-50. 

 On the Mineralogy of certain Organic Remains from the Lau- 

 rentian Rocks of Canada. Dr. T. Sterry Hunt. Op. cit. 

 pp. 67-71. 



On the Structure and Affinities of Eozoon Canadense. Letter 

 to the President of the Royal Society. Dr. W. B. Carpenter. 

 Proc. Roy. Soc. vol. xiii. pp. 545-549. 

 Geological Magazine. Vol. ii. pp. 87, 88, Dec. 27, 1864. 



Announcement by Mr. W. A. Sandford,F.G.S., of his discovery 

 of "Eozoon Canadense" in Connemara marble from the Bina- 

 bola Mountains ; which "T. R. J.," at the same time, announced 

 he had "verified by experiment." "The various formed cham- 

 bers, the shell of varying thickness, either very thin and traversed 

 with fine tubuli, the silicate filling which (when bared) resembles 

 white velvet-pile, or thick and traversed with brush-like threads, 

 representing the pseudopodian passages of the ' supplemental 

 shell ' (or ' vascular system '), are all present." 

 "Appendix" to a reprint of Dr. Dawson's Memoir (A.D. 1864) 



in Canadian Naturalist, April 1865. 



Dr. Dawson, who had previously observed " traces of organic 

 structure in the Connemara marble, but not in so far as can be 

 made out of the character of Eozoon/' declares that "it is 

 gratifying to find in recent British publications notices to the 

 effect that Mr. Sandford has found the structure of Eozoon in 

 the Laurentian limestones of Ireland." 



On the Structure, Affinities, and Geological Position of Eozoon 

 Canadense. Dr. W. B. Carpenter. Intellectual Observer, 

 vol. vii. 



On the oldest known Fossil, Eozoon Canadense, of the Lauren- 

 tian Rocks of Canada; its place, structure, and significance. 

 Prof. T. Rupert Jones. Popular Science Review, vol. iv. 



