PROCEEDINGS FOR 1899 XCIX 



1st Vice-President— A. H. MacKay, Esq., LL.D., F.E.S.C. 



2nd Vice-President — F. W. W. Doane, Esq. 



Treasurer — W. C. Silver, Esq. 



Corresponding Secretary — Professor J. G. MacGregor, D.Sc, 

 F.R.S.C. 



Eecording Secretary — Harry Piers, Esq. 



Librarian — Maynard Bo^vnian, Esq. 



Other Members of Council — Edwin Gilpin, jr., Esq., LL.D., 

 F.E.S.C; Martin Murphy, Esq., D.Sc; William McKerron, Esq.; 

 Eoderick McColl, Esq., CE.; S. A. Morton, Esq., M.A.; Watson L. 

 Bishop, Esq.; P. O'Hearn, Esq. 



Part 4 of volume IX of the Proceedings and Transactions has 

 been published and distributed, 'and Part 1 of volume X will be pro- 

 ceeded with immediately. 



Besides the! presidential address by Alexander McKay, Esq., the 

 following papers were communicated to the institute during the session 

 just ended : — 



1. "On Statistics of Consumption and Expenditure in Canada," 

 by Prof. J. Davidson, Phil.D. 



2. " Infusorial Earths of the World, and the Iceberg Period," by 

 A. M. Edwards, Esq., M.D. 



3. " On the Diatomace£e of Nova Scotia," by A. II. MacKay, Esq., 

 LL.D., F.E.S.C. 



4. "School-Eoom Air," by Prof. Lee Eussell. 



5. " New Mineral Discoveries in Nova Scotia," by Edwin Gilpin, 

 jr., Esq., LL.D., F.E.S.C 



6. " A Sanitarium for Consumptives," by A. P. Eeid, Esq., M.D. 



7. " On the Determination of the State of Ionization in Complex 

 Solutions," by Prof. J. G. MacGregor, D.Sc, F.E.S.C 



8. " Observations on the Time of Flowering of Plants in various 

 Counties of Nova Scotia," by A. H. MacKay, Esq., LL.D. 



9. "A Note on the Eigidity of India-Eubber," by Prof. J. G. 

 MacGregor and W. A. McDonald, Esq. 



10. " On the Conductivity and other Physical Properties of Aque- 

 ous Solutions containing Potassium Chloride and Potassium Sul- 

 phate," by James Barnes, Esq. 



11. " Observations on a Fish new to the Fauna of Nova Scotia," 

 by Harry Piers, Esq. 



12. " On the Presence of Acid Sulphates in Solutions containing 

 Copper Sulphate and Sulphuric Acid," by Charles F. Lindsay, Esq. 



13. " Notes on Nova Scotian Zoology," by Harry Piers, Esq. 



