﻿310 Canadian Record of Science. 



McDonald Physics Building. The greatest vertical move- 

 ment there recorded amounted to xFo"tti of an inch, the 

 greatest movement in a north and south direction was 

 -g^^th of an inch, and the greatest in the east and west 

 direction o^^o^^ ^^ ^^ inch. 



The seconds marked on the traces indicate the time 

 elapsed from the instant of starting the Seismograph. A 

 certain amount of vibration is, of course, required to 

 make the electrical contact which sets the machinery in 

 motion. 



C. M. AND H. C. 



Outline of the President's Retiring Address. 



After thanking the members of the Society for the 

 honour they had done him in electing him twice in 

 succession to the highest office in their gift, and for the 

 loyal support they had given him in the performance 

 of his duties as President, he proceeded to review the 

 work of the Society for the past two years. 



1. He had to congratulate the Society upon the number 

 of valuable papers which had been laid before it at the 

 monthly meetings during the past two sessions. One of 

 the special duties devolved upon the President was to 

 secure original contributions on Natural History for those 

 meetings. His endeavour had been to have all depart- 

 ments of Natural History represented in the communica- 

 tions made to the Society ; and at least a measure of 

 success in this aim had been secured. Important 

 additions had been made to the volume of Canadian 

 science by our members in the papers they submitted. 

 But more might have been accomplished in this direction 

 if all the members had charged themselves with 

 co-operating according to their tastes, knowledge and 

 opportunities. It ought not to be forgotten that the main 

 object for which the Society exists was to foster a taste 



