VI PROCEEDINGS 



Dr. J. Cameron, was appointed delegate to represent the 

 Institute at the Meeting of the Royal Society of Canada. 



It was reported that Prof. W. F. McKnight, N. S. Techni- 

 cal College, Halifax, had been elected an ordinary member on 

 4th May. 



Prof. D. Fraser Harris, M. D., D. Sc, F. R. SS. E. & 

 C, delivered an interesting and instructive popular lecture on 

 "What Seeing Means," illustrated by lantern slides. The 

 audience then adjourned to the physiological laboratory w^here 

 preparations of parts of the eye were shown under the micro- 

 scope. 



Third Ordinary Meeting 



Physiological Lecture Roovt, Dalhousie College, Halifax, 

 21st May, 1923. 



The President, Prof. Nickerson, in the chair. 



The Following papers were then read: 



(I.) A Procedure for the Qualitative Analysis of the group 

 Magnesium, Potassium, and Sodium, by Prof. Harold S. 

 King, Dalhousie University. Discussed by the President, 

 Dr. Johnstone, Mr. Todd, and Mr. Piers. 



(2.) The Electrical Conductivity of Calcite. By W. J. 

 Jackson, M. A., Dalhousie University. Discussed by Dr. 

 Johnstone, the President, and Mr. Todd. 



(3.) A Scheelite (Tungsten-bearing) Deposit recently 

 discovered at Lower Sackville, Halifax County. By Harry 

 Piers. Discussed by Dr. Johnstone, Mr. Todd, and F. W. 

 Dixon. 



(4.) Phenological Observations, Nova Scotia, 1922. By 

 A. H. MacKay, LL. D., F. R. S. C, Superintendent of Edu- 

 cation. 



Harry Piers, 



Recording Secretary. 



