RECOMMENDATIONS ADOPTED BY THE GENERAL COMMITTEE. lxxv 
and of connecting them with observations made on the French coast ; 
and that Mr. Shoolbred be the Secretary. 
That Professor Barrett, Professor Fitzgerald, and Professor Balfour 
Stewart be a Committee for the purpose of reporting on the Molecular 
Phenomena attending the Magnetisation of Iron; and that Professor 
Barrett be the Secretary. 
That Professor G. H. Darwin and Professor J. C. Adams be reap- 
pointed a Committee for the Harmonic Analysis of Tidal Observations ; 
and that Professor Darwin be the Secretary. : 
That Mr. John Murray, Professor Schuster, Sir William Thomson, 
Professor Sir H. E. Roscoe, Professor A. S. Herschel, Captain W. de W. 
Abney, Professor Bonney, Mr. R. H. Scott, and Dr. J. H. Gladstone be 
reappointed a Committee for the purpose of investigating the practica- 
bility of collecting and identifying Meteoric Dust, and of considering the 
question of undertaking regular observations in various localities; and 
that Mr. Murray be the Secretary. 
That Professors A. Johnson, Macgregor, J. B. Cherriman, and H. J. 
Bovey and Mr. ©. Carpmael be reappointed a Committee for the purpose 
of promoting Tidal Observations in Canada; and that Professor Johnson 
be the Secretary. 
That Professor Sylvester, Professor Cayley, and Professor Salmon be 
reappointed a Committee for the purpose of calculating Tables of the 
Fundamental Invariants of Algebraic Forms; and that Professor Cayley 
be the Secretary. 
That Professors Everett and Sir William Thomson, Mr. G. J. Symons, 
Sir A. C. Ramsay, Dr. A. Geikie, Mr. J. Glaisher, Mr. Pengelly, 
Professor Edward Hull, Professor Prestwich, Dr. C. Le Neve Foster, 
Professor A. S. Herschel, Professor G. A. Lebour, Mr. A. B. Wynne, 
Mr. Galloway, Mr. Joseph Dickinson, Mr. G. F. Deacon, Mr. E. Wethered, 
and Mr. A. Strahan be reappointed a Committee for the purpose of 
investigating the Rate of Increase of Underground Temperature down- 
wards in various Localities of Dry Land and under Water ; and that Pro- 
fessor Everett be the Secretary. 
That Professor Cayley, Sir William Thomson, Mr. James Glaisher,. 
and Mr. J. W. L. Glaisher (Secretary) be reappointed a Committee for 
the purpose of calculating certain tables in the Theory of Numbers 
connected with the divisors of a number. 
That Professors Tilden and Ramsay and Dr. W. W. J. Nicol be a 
Committee for the purpose of investigating the subject of Vapour Pressures 
and Refractive Indices of Salt Solutions; and that Dr. W. W. J. Nicol 
be the Secretary. 
That Professors Ramsay, Tilden, Marshall, and W. L. Goodwin be 
a Committee for the purpose of investigating certain Physical Constants 
of Solution, especially the expansion of saline solutions; and that Pro- 
fessor W. L. Goodwin be the Secretary. 
That Professors W. A. Tilden and H. EH. Armstrong be a Committee 
for the purpose of investigating Isomeric Naphthalene Derivatives; and 
that Professor H. E. Armstrong be the Secretary. 
That Professor Sir H. E. Roscoe, Mr. Lockyer, Professors Dewar, 
Liveing, Schuster, W. N. Hartley, and Wolcott Gibbs, Captain Abney, 
and Dr. Marshall Watts be a Committee for the purpose of preparing 
a new series of Wave-length Tables of the Spectra of the Elements; 
and that Dr. Marshall Watts be the Secretary. 
