476 Canadian Record of Science. 



part of hard, compact light yellowish grey rusty and 

 greenish colored sandstones or siliceous rock and shales, 

 holding corals, trilobites, brachiopoda. 



An additional note brought out by this paper in the 

 discussion was the fact that in Eastern Canada, not only 

 in the Silurian or in the Devonian, but also in the Cam- 

 brian and Devonian as well as in the Carboniferous, it was 

 necessary to introduce a dual formational scale in order to 

 classify the sediments. The Stonehouse formation, for 

 instance, whilst occupying a position well up in the Silu- 

 rian, was quite distinct from the Silurian formations of 

 Ontario or New York as well as of other parts of Canada 

 and the United States, and could in no sense be used to 

 replace the term Lower Helderberg, being esentially dis- 

 tinct. 



There were other papers of special interest to Canadian 

 geologists. (1) Mr. F. B. Taylor " Oti the Gait Morai7ie 

 and the ice-dam lohich jproduced them," in which the 

 author delineated the courses and structure of the mor- 

 ainic belts recently examined by him in the Huron-Erie 

 Peninsula of Ontario. (2) Prof. H. S. Williams on 

 " Points involved in the Silurian-Devonian Bonndary 

 Question." This paper was expected to lead to a lively 

 and interesting discussion, but the author wisely elimin- 

 ated all doubtful or controversial points which are now 

 pending investigation. The means by which a settlement 

 of the questions at issue may be eifected were also dis- 

 cussed. (3) Messrs. Henry Kilmmel and Stuart Weller 

 on " The Palaeozoic - Litnestones of the Kittaniny Valley, 

 N.J." (4) Prof. August F. Fcerste on " The Niagara 

 growp along the Western side of the Cincinnati anticline." 



(5) Prof. N. H. Winchell on " Glacial Lakes of Minnesota." 



(6) Prof. W. M. Davis on " An Excursion to the Colorado 

 Canyon" and other papers by him. (7) Prof. H. P. 

 Gushing on " Origin a7id Age of an Adirondack augite- 



