liv REPORT — 1877. 



That the Committee, consisting of Professor Everett, Professor Sir William 

 Thomson, Professor J. Clerk Maxwell, Mr. G. J. Symons, Professor Eamsay, 

 Professor Geikie, Mr. J. Glaisher, Mr. Pengelly, Professor Edward Hull, Pro- 

 fessor Ansted, Dr. Clement Le Neve Foster, Professor A. S. Herschel, Mr. 

 G. A. Lebour, Mr. A. B. Wynne, Mr. Galloway, and Mr. Joseph Dickinson, 

 on Underground Temperature, be reappointed. 



That the Committee, consisting of Dr. W. Huggins, Mr. J. N. Lockyer, 

 Professor J. Emerson Reynolds, Mr. G. J. Stoney, Mr. Spottiswoode, Dr. De 

 La Rue, and Dr. W. M. Watts, for the purpose of preparing and printing 

 Tables of Wave-frequency (Inverse Wave-lengths), be reappointed. 



That a Committee, consisting of Professor Cayley, Dr. Farr, Mr. J. W. L. 

 Glaisher, Dr. Pole, Professor Fuller, Professor A. B. W. Kennedy, Professor 

 Clifford, and Mr. C. W. Merrifield, be appointed to consider the advisability 

 and to estimate the expense of constructing Mr. Babbage's Analytical Machine, 

 and of printing tables by its means ; and that Mr. C. W. Merrifield be the 

 Secretary of the Committee. 



That a Committee, consisting of Professor Sir William Thomson, Mr. W. 

 Froude, Professor Osborne Reynolds, Captain Douglas Galton, and Mr. James 

 N. Shoolbred (with power to add to their number), be appointed for tho purpose 

 of obtaining information respecting the phenomena of the stationary tides in 

 the English Channel and in the North Sea, and of representing to the Go- 

 vernment of Portugal and the Governor of Madeira that in the opinion of tho 

 British Association, tidal observations at Madeira or otber islands in the North 

 Atlantic Ocean would be very valuable, with the view to tbe advancement of 

 our knowledge of the tides in the Atlantic Ocean ; and that Mr. James N. 

 Shoolbred be tho Secretary. 



That the Committee, consisting of Mr. Spottiswoode, Professor G. G. Stokes, 

 Professor Cayley, Professor H. J. S. Smith, Professor Sir William Thomson, 

 Professor Henrici, Lord Rayleigh, and Mr. J. W. L. Glaisher, on Mathemati- 

 cal Notation and Printing, be reappointed. 



That the Committee, consisting of Professor Balfour Stewart, Professor 

 Clerk Maxwell, and Professor W. F. Barrett, on tho Magnetization of Iron, 

 Nickel, and Cobalt, be reappointed. 



That tho Committee, consisting of Professor Stokes, Dr. Do La Rue, Pro- 

 fessor Clerk Maxwell, Professor W. F. Barrett, Mr. Howard Grubb, and Mr. 

 G. Johnstone Stoney, for examining and reporting upon the reflective powers 

 of Silver, Gold, and Platinum, whether in mass or chemically deposited on 

 glass, and of Speculum Metal, be reappointed. 



That Professor G. C. Foster, Professor W. G. Adams, Professor R. B. Clifton, 

 Professor Cayley, Professor J. D. Everett, Professor Clerk Maxwell, Lord 

 Rayleigh, Professor G. G. Stokes, Professor Balfour Stewart, Mr. Spottis- 

 woode, and Professor P. G. Tait be a Committee for the purposo of endeavour- 

 ing to procure reports on the progress of the chief branches of Mathematics 

 and Physics ; that Professor G. Carey Foster be the Secretary. 



That Professor Clifford be requested to prepare a report on the Physical 

 Applications of Quaternions. 



That Mr. C. W. Merrifield be requested to report on the present state of 

 knowledge of the application of Quadratures and Interpolation to Actual Data. 



That Dr. F. Clowes and Dr. W. A. Tilden be a Committee for the purpose 

 of examining the action of Ethylbromo-butyrate on Ethyl-sod-acetate ; that 

 Dr. Clowes be the Secretary. 



That Mr. W. N. Hartloy, Dr. E. J. Mills, and Mr. W. Chandler Roberts 

 be a Committee for the purpose of investigating the conditions under which 



