HAMILTON SCIENTIFIC ASSOCIATION 135 



time, respecting the excessive hardness of the shore material 

 at Winona as contrasted with other places, the beach for 

 instance, I may not be far astray in believing the limestone 

 containing it was embedded and washed out of the glacial 

 clay there. 



Where the specimens collected have not been found in 

 situ and are known to represent lower Silurian organisms, 

 the writer believes he is perfectly justified in adopting the 

 term Cambro-Sil . remains. The Continental Glaciers took 

 tribute from all formations they passed over. About lyondon, 

 Ont., as far as I recollect, the Drift was loo feet deep, and 

 hold many well preserved corals and other Devonian fossils. 

 Singular to state, on one occasion I extracted from the river 

 bank a fine specimen of the Niagara Coral, Halysites 

 Catenulata. As far as we know it has never been found in 

 Corniferous limestone. 



The Geological Survey of this portion of the Dominion 

 was undertaken nearly half a century ago, when roads and 

 quarries were unopened or unknown. We members of the 

 Geological Section of the Hamilton Scientific Association 

 must admit they labored under very great disadvantages. 



Whether the writer succeeds or fails in inducing members 

 of the Section and others outside our circle to consider views 

 opposed to such as have been generally accepted hitherto 

 regarding the origin of the lyower Silurian fossiliferous shale 

 along the lake shore, he can certainly declare that since A. 

 E. Walker's original discovery, the subject has been carefully 

 investigated, and more closely perhaps during the past three 

 summers than previously. He felt it was absolutely necessary 

 to make sure of the facts, which he believes can hardly be 

 doubted. Probably too much time was lost last June in 

 breaking up limestone shingle containing outside indications 

 of well known specimens. There was an unusual display of 

 fossiliferous material on the Beach last summer. I fear it 

 possessed a sort of fascination I was unable to resist. An 

 exceedingly large collection of well known Cambro-Silurians 

 was made, many in good preservation ; but it led to neglect- 



