PEOCEEDINGS FOE 1891. LXVII 



The following gentlemen were elected ofiSce-bearers for the year 1891-92 : 



Eev. George Patterson, D.D., President. 



"Wm. Kingsford, LL.D., Vice-President. 



George Stewart, LL.D., D.C.L. F.E.G.S., Secretary. 



The printing committee for the year, consisting of Dr. George Stewart, President, Dr. J. G. 

 Bourinot and Dr. W. H. Withrow, was appointed. 



Report of Section III. 



Section III has to report that the members have held four meetings, viz. : May 27th, 2.30 p.m. ; 

 May 28th, 3 p.m. ; May 29th, 11.30 a.m. ; May 29th, 2.30 p.m. ; that the papers presented to the sec- 

 tion were seventeen in number, of which sixteen were read, one talien as read. 



Important discussions ensued after the reading of these papers, a list of which is appended. 



At the forenoon meeting May 29th the election of officers was held, with the following result : 



Prof. J. G. McGregor, President. 

 Prof. B. J. Chapman, Vice-President. 

 Ml'. F. N. GisBORNE, Secretary. 



1. De la Certitude dans les Sciences d'Observation. Presidential address by Mgr. T. Hamel. 



2. Automatic and Multijjlex Telegraphy, by F. N. Gisborne. 



3. The Use of a Symbolic Form of de Moivres Function, by Prof. N. F. Dupuis. 



4. An Attempt at deducing the Pressure under which a Steam Boiler Explodes from the Dynamic 



Effects produced by the Explosion, by C. Baillairgé. 



5. A Paper relating to the Steam Boiler Explosion at Sillery, near Quebec, by the same. 



6. Establissement des Formules de Wrouski relatives à la Mécanique Céleste, par le Dr. A. Diival 



de l'Ecole Eoyale Militaire de Kingston. Présenté par Mgr. T. E. Hamel. (Taken as read 

 referred to Messrs. Deville andCarpmael). 

 T. (a) On the Variation with Temperature and Concenti-ation of the Absorjjtion Spectra of 

 aqueous Solution of Salts, by Prof J. G. McGregor. 

 (6) On the Density of weak aqueous Solutions of Nickel Sulphate, by the same, 

 (c) On the Eelativity of Force and the Third Law of Motion, by the same. (Eeferred to 

 Messrs. Deville and Carpmael.) 



8. The Synthesis of a new Di-quinoline, by Dr. E. P. Euttan. Communicated by Dr. Girdwood. 



9. Faraday's " Lines of Force :" Suggestion of a Name, by Alexander Johnson, M. A., LL.D. 



10. On Newton's use of the slit in the formation of the Spectrum, by the same. 



11. A New Oxy-Ether Lamp, by G. E. Prowse, Montreal. Communicated by Dr. Johnson. 



12. Memoranda as to preparations for the proposed Telegraphic Longitude Determination: 



Greenwich — Montreal, by Prof McLeod, Ma.E. Communicated by Dr. Johnson. 



13. Observations of Sun Spots, May, 1890, to May, 1891, by Prof McLeod, Ma.E. Communicated 



by Dr. Johnson. 



14. (a) On the Time Unit ; (6) On the Hour Meridians, by Dr. Sandford Fleming, C.M.G. 



15. On Moral, Metaphysical and Personal Elements in Statistics, by George Hague, Esq. Com- 



municated by Sir "William Dawson. 



