No. 2.] NATURAL HISTORY SOCIETY. 125 



A fiae specimen of fresh -water black-bass, Ceiifno-chus/asciatus, 

 was presented to the Museum by 31 r. Alex. Fowler. 



Mr. J. T. Donald then read a paper on " Elephant remains 

 from Washington Territory." 



This paper was a statement of the result of an effort to deter- 

 mine the species to which Elephant remains, represented by a 

 molar forwarded to the Society, belonged. The remains were 

 referred to E/ejjJias j)i'iniigenius, var. Jacksoni. 



The chairman next addressed the meetin<>; " On the origin and 

 history of successive floras of America." He showed that these 

 floras had all originated in the north and then moved southward. 



The various theories as to the causes by which these polar 

 regions had been rendered fit habitations for plants of our tem- 

 perate climes were presented and discussed, after which the meet- 

 ing adjourned. 



O) 



The sixth regular meeting took place on Monday Evening 

 April 28th. The President occupied the chair. After routine 

 business, Kenneth Campbell, Esq., presented the Society with a 

 specimen of coca, Erytliroxylon coca, from Mexico. 



Mr. Thomas Macfarlane, of Acton, Que., read a paper entitled 

 " Remarks on Canadian Stratigraphy." This was a reply to, and 

 criticism of Mr. Selwyn's paper " On the Stratigraphy of the 

 Quebec Group and the older crystalline rocks of Canada," read 

 before the Society in February last. 



Mr. Macfarlane's paper appears in the present number of the 

 JVaturalisf. 



Mr. Selwyn replied to Mr. Macfarlane, explaining some of the 

 statements he had made in the article referred to, and maintain- 

 ing the correctness of the position assumed by him in these state- 

 ments. 



Dr. T. Sterry Hunt also spoke in reference to Mr. Selwyn's 

 late paper. He contended that the Norian rocks are not erup- 

 tive, and objected to Mr. Selwyn calling his " systems " of rocks 

 such as Norian and Montalban theoretical, when thirty years 

 labor had been spent upon them. 



Dr. J, Baker Edwards then presented the meeting with " Notes 

 on the Water Supply of Montreal and its Suburbs," which we 

 publish in full. 



