PROCEEDINGS XI 



Prof. Douglas McIntosh, D.Sc, read a paper on "Ox- 

 ONiUM Compounds." — The subject was discussed by the Pres- 

 ident, Dr. Johnstone, and Mr. Todd. 



Dr. a. H. A^IacKay presented a paper on "Phenological 

 Observations, Nova Scotia, for 1923." — The subject was 

 discussed by the President, Dr. Johnstone, and Mr. Todd. 



Harry Piers, curator of the Provincial Museum, present- 

 ed a paper on '"''Coregonus labradoricus, an interesting addi- 

 tion to the Freshwater Fish Fauna of Nova Scotia." — The sub- 

 ject was discussed by the President, Dr. McIntosh, and Dr. 

 Johnstone. 



A committee on popular lectures was appointed as fol- 

 lows: Dr. Nicholls, Dr. Ritchie, Dr. Johnstone, and Prof. 

 Bell, with power to add to their number. 



Fifth Popular Lecture 



Physiological Lecture Room, Medical Science Building, Halifax, 

 27th May, 1924 



The President, Prof. Nickerson, in the chair, and 

 fourteen members present. 



J. B. Feilding, Halifax, delivered a popular lecture on 

 "The Biology of the Pearly Mussel and its Ultimate use in the 

 Button Trade," illustrated by lantern slides. 



A vote of thanks was presented to Mr. Feilding. 



Harry Piers, 



Recording Secretary. 



