1G2 



SOIREES. 



Second. On Tlmi-sday, the 5th January. Mr. Amos Bowman, of 

 the Geological Survey Staff, explained the significance of the clays, 

 sands and gravels of this district, and drew especial attention to their 

 mode of occurrence at the localities visited by the Club Excursions. 

 By means of a longitudinal section of the valley of the St. Lawrence, 

 including the Great Lakes, and a map marked with blue outlines, he 

 showed the widest expansion, and greatest elevation which the waters 

 of this great basin attained in the Pleistocene period. Diagrams were 

 also drawn on the blackboard showing the relations of the clays and sands 

 to the gravel deposits formed by the rivers when these ran at corres- 

 ponding elevations. The level of the Welch terrace, on the side of the 

 mountain, near OheLea, was shown by the section to over-top the hills 

 of Ontario, and to intersect the grade of the St. Lawrence at Sault Ste. 

 Marie. The paper, which was highly appreciated by all present, will 

 be found in the present number. 



Mr. H. B. Small said that he had listened with very much 

 pleasure to the lecture, which had presented to the members in a very 

 clear manner the very important subject treated of. It seemed to him 

 especially a proof of the great value of the Club outings, as a means 

 of elucidating such lectures, for if the localities referred to by Mr. 

 Bowman had not been visited by the members, it would have been im- 

 possible for them to have so fully realized the character and extent of 

 the deposits in question. Mr. Stewart stated that he had seen in 

 Madoc nodules, obtained from Deer Creek, in the County of Hastings, 

 which exactly resembled those obtained from Green's Creek, near 

 Ottawa, but that not having had an opportunity of opening these 

 nodules he could not say whether tliey actually contained fossils. In 

 reply to a question by Mr. R. B. Whyte as to whether the boulders, 

 which oc3ur in large numbers between the Ottawa River and the 

 Chelsea Mountains were deposited by glaciers, Mr. Bowman explained 

 that ice was the; only known ai,'ent for the transportation of such 

 masses. Mr. Ami made some remarks as to the evidence of glacial 

 action in certain localities mentioned, and to the deposition of certain 



deposits of gravel at Brittania, but owing to the late hour the discus- 

 .sion was not prolonged. 



