40 



CONCRETIONAnV STRUCTURE IN ROCKS — WESTON. 



In 1870 Dr. Selwyii found in the grey auriferous slates at the 

 Ovens Bluffs in Lunenburg County, Nova Scotia, certain fucoidal 

 markings which Mr. Billings, paleontologist to the Geological 

 Sui'vey, regarded as belonging to the genus Eophyton (Geological 



Tree-like Concretions at Kingston, Ont 



Survey Report, 1870-71, page 269). Mr. G. F. Matthew describes 

 similar markings from the Cambrian rocks of St. John, N. B., as 

 being produced by some animal (Trans, l^oy. Soc. Canada, Vol. 

 III., page 150). The Ovens specimens he refers doubtfully to 

 the genus Ctenichnites. But, whether they are plants or tracks, 



