1889.] President's Address. 459 



In 1884 he presented to the Chemical Society a lengthy paper 

 describing his method and the results obtained for a very large 

 number of paraffinoid hydrocarbons and haloid and oxygenated 

 derivatives thereof ; from these he deduced " constants," which he has 

 since shown to be applicable in calculating the magnetic rotatory 

 power of paraffinoid compounds generally. From time to time he has 

 published further instalments of his work, and only quite recently has 

 described the results obtained on examining nitrogen compounds, 

 which exhibit many most interesting peculiarities. 



The results are of special value on account of the exceptional care 

 devoted to the preparation of pure substances, and the guarantee 

 which Dr. Perkin's reputation affords, that everything possible has 

 been done to secure accuracy ; and also because the substances chosen 

 are for the most part typical substances, or belong to series in which 

 a simple relationship exists. 



The Statutes relating to the election of Council and Officers were 

 then read, and Sir W. Aitken and Professor H. G. Seeley having been, 

 with the consent of the Society, nominated Scrutators, the votes of 

 the Fellows present were taken, and the following were declared duly 

 elected as Council and Officers for the ensuing year : — 



President. — Sir George Gabriel Stokes, Bart., M.A., D.C.L., LL.D. 



Treasurer.— John Evans, D.C.L., LL.D. 



f Professor Michael Foster, M.A., M.D. 

 Secretaries.— ^^ Lord Rayleigllj M.A., D.C.L. 



Foreign Secretary. — Archibald Geikie, LL.D. 



Other Members of the Council. 



Professor Henry Edward Armstrong, Ph.D. ; Professor William 

 Edward Ayrton ; Charles Baron Clarke, MA. ; Professor W. Boyd 

 Dawkins, MA. ; Edward Emanuel Klein, M.D.; Professor E. Ray 

 Lankester, M.A. ; Hugo Miiller, Ph.D. ; Professor Alfred Newton, 

 M.A. ; Captain Andrew Noble, C.B. ; Rev. Stephen Joseph Perry, 

 D.Sc. ; Sir Henry E. Roscoe, D.C.L. ; Edward John Routh, D.Sc. ; 

 William Scovell Savory; Professor Joseph John Thomson, M.A. ; 

 Professor Alexander William Williamson, LL.D. ; Sir Charles William 

 Wilson, Col. R.E. 



The thanks of the Society were given to the Scrutators. 



