228 The Ottawa Naturalist. [February 



the Middle embracing- those which lie between. It was in this sense 

 that I used the term Mid- Cretaceous in our memoir. Recent con- 

 ferences with Mr. J. B. Hatcher, who is familiar with Montana 

 formations, confirm ihis usagfe. 



In addition to ihe above statement, I am not clear as to the 

 correlation of the Lower Cretaceous south of the Canadian border. 

 The Dakota series immediately overlie the Sauropoda and Bapta- 

 nodon beds, which in turn are corrt-lated by one of the most 

 eminent authorities, Professor Eberhard Fraas of Stuttgart, with 

 the Purbeckien and Oxfordien of ihe European g^eologists. 



We are so much in doubt as to the actual relations of these 

 rocks to those of Europe that all notes and discussions of the ques- 

 tion are very welcome. 



Henry F. Osborn. 



SOIREES. 



There was a large attendance of members of the Club and 

 their friends at the first of the winter soirees at the Normal 

 School December i6th Dr. S. B. Sinclair, in his address of 

 welcome, referred to the benefit derived from the Club's work by 

 the Normal School students, to whom the spring and autumn 

 excursions as well as the soirees held during the winter aflforded 

 an enjoyable means of supplementing their knowledge of the 

 natural sciences. 



The President's address on "The Functions of a Geological 

 Survey" was delivered by Dr. Robert Bell, the Acting Director of 

 the Geological Survey, and will appear in an early number of 

 The Naturalist. 



A short paper was then read by Dr. James Fletcher on 

 " Some Ottawa Butterflies and Moths." This was illustrated by 

 beautiful lantern slides, some of which had been kindly lent for 

 the evening by Prof W. Lochhead, of Guelph, and Mr. A. E. 

 Norris, of Montreal. Those from the former were coloured by 

 Mrs, Slingerland, of Cornell University, and those from Mr, 



