442 Canadian Record of Science. 



Horticultural Society is wholly devoted to a report by the 

 Rev. Geo. Henslow on the effects of the severe frost which 

 visited Great Britain in the winters of 1879-80 and 1880-81. 

 The report contains a very large number of facts derived 

 from reports sent in from various parts of Great Britain. 

 In summing up the more important results obtained from 

 these data, Mr. Henslow chiefly points out the fact that 

 age and maturity of structure for any season are most 

 important factors in the ability of plants to resist severe 

 cold. Plants which continue their growth late in the sea- 

 son, are much more susceptible to cold than those which 

 ripen their structure earlier. 



Proceedings of ,the Society. 



The fifth monthly meeting of the Society was held on 

 Monday, March 28th, the President, Sir Wm. Dawson, in 

 the chair. 



A letter from Mr. Thos. Macfarlane was read relative to 

 the death of Mr. Charles Robb, C.E., when the following 

 resolution was adopted : — 



" That this Society has learned with regret, of the decease 

 of Mr. Charles Eobb, C.E., who was for a long time one of the 

 most useful members of the Society, and one of its officers, 

 as well as the author of valuable papers contributed to its 

 meetings." It was further resolved that, a notice of Mr. 

 Eohb's life be published in the Record of Science. 



Mr. Joseph Bemrose was elected a delegate to represent 

 this Society at the annual meeting of the Eoyal Society of 

 Canada. 



Mr. Ernest Ingersoll was duly elected a member of the 

 Society. 



Specimens of Canadian mica, having garnets and other 

 minerals imbedded in it, were exhibited by Mr. J. A. U. 

 Beaudry. 



The President presented a paper, by Dr. G. M. Dawson, 

 on " The Occurrence of Jade in British Columbia," and ex- 



