lviii report — 1878. 



The Council regret that pressing engagements compel Mr. Griffith to 

 withdraw finally from the position of Assistant-General Secretary after 

 the present meeting of the Association, and take this opportunity of ex- 

 pressing their high estimation of the value of the services which Mr. 

 Griffith has rendered to the Association during a period of sixteen years, 

 and of the serious loss which his retirement will occasion to the Council 

 and to the Association. Mr. Griffith remains an ex-officio Member of 

 Council, as a former general officer, so that the Council trust they may 

 still retain the benefit of his experience. 



In accordance with the Report of last year, the Council will propose to 

 the General Committee that the post of Assistant Secretary be filled by 

 the election of Mr. J. B. H. Gordon. 



Recommendations adopted by the General Committee at the 

 Duplin Meeting in August 1878. 



[When Committees are appointed, the Member first named is regarded as the 

 Secretary, except there is a specific nomination.] 



Involving Grants of Money. 



That the Committee, consisting of Professor Cayley, Professor G. G. 

 Stokes, Professor H. J. S. Smith, Professor Sir "William Thomson, Mr. 

 James Glaisher, and Mr. J. W. L. Glaisher (Secretary), be reappointed ; 

 and that the sum of 150Z. be placed at their disposal for the purpose of 

 calculating Factor Tables of the fifth and sixth millions. 



That a Committee, consisting of Professor Sylvester (Secretary) 

 and Professor Cayley, be appointed for the purpose of calculating Tables 

 of the Fundamental Invariants of Algebraic Forms ; and that the sum of 

 501. be placed at their disposal for the purpose. 



That the Committee, consisting of Professor G Forbes (Secretary), 

 Professor Sir William Thomson, and Professor J. D. Everett, for the pur- 

 pose of making certain observations in India, and observations on Atmos- 

 pheric Electricity at Madeira, be reappointed ; and that the grant of 15L 

 that has lapsed be renewed. 



That the Rev. Dr. Haughton and Mr. B. Williamson be a Committee 

 for the calculation of Tables of Sun-heat Coefficients ; that Mr. B. 

 Williamson be the Secretary, and that the sum of 30Z. be placed at their 

 disposal for the purpose. 



That the Committee, consisting of Dr. Joule (Secretary), Professor 

 Sir William Thomson, Professor Tait, Professor Balfour Stewart, and 

 Professor J. Clerk Maxwell, for effecting the Determination of the Me- 

 chanical Equivalent of Heat be reappointed ; and that the grant of 65Z. 

 that has lapsed be renewed. 



That a Committee, consisting of Professor G. Forbes (Secretary), 

 Professor W. G. Adams, and Mr. W. E. Ayrton, be appointed for the pur- 

 pose of improving an instrument for detecting the presence of Fire-damp in 

 Mines ; and that the sum of 30Z. be placed at their disposal for the purpose. 



That Mr. W. E. Ayrton (Secretary), Dr. O. J. Lodge, and Mr. J. E. H. 

 Gordon be appointed a Committee for accurately measuring the specific 



