EECOMMENDATIONS ADOPTED BY THE GENERAL COMMITTEE. Ixxxiii 



Cunningham, Mr. Isaac Roberts, Dr. H. R. Mill, and Professor Fitz- 

 gerald be a Committee for the purpose of arranging an investigation of 

 the seasonal variations of temperature in lakes, rivers, and estuaries in 

 various parts of the United Kingdom in co-operation with the Local 

 Societies represented on the Association, and that Mr. John Murray be 

 the Secretary. 



That Lord Rayleigh, Professors Rowland, Liveing, Dewar, Everett, 

 W. Grylls Adams, J. J. Thomson, and Schuster, and Messrs. Marshall 

 Watts, and Glazebrook be a Committee for the piirpose of taking such 

 steps as may lead to the adoption of an International Scale of Wave- 

 lengths for the Solar Spectrum ; and that Pi-ofessor Schuster be the 

 Secretary. 



That Sir F. J. Bramwell, Mr. E. A. Cowper, Mr. G. J. Symons, Professor 

 G. H. Darwin, Professor Ewing, Mr. Isaac Roberts, Mr. Thomas Gray, 

 Dr. John Evans, Professor Lebour, Professor Prestwich, Professor Hull, 

 Professor Meldola, Professor Judd, and Mr. J. Glaisher be a Committee 

 for the purpose of considering the advisability and possibility of estab- 

 lishing in other parts of the country observations upon the prevalence of 

 Earth Tremors, similar to those now being made in Durham in connec- 

 tion with Coal-mine Explosions; and that Professor Lebour be the 

 Secretary. 



That Professor Barrett, Professor Fitzgerald, Professor Balfour 

 Stewart, and Mr. Trouton be reappointed a Committee for the purpose 

 of reporting on certain Molecular Phenomena connected with the Mag- 

 netisation of Iron ; and that Professor Barrett be the Secretary. 



That Mr. John Murray, Professor Schuster, Sir William Thomson, 

 the Abbe Renard, Mr. A. Buchan, the Hon. R. Abercrombie, and Dr. M. 

 Grabham be reappointed a Committee for the purpose of investigating 

 the practicability of collecting and identifying Meteoric Dust, and of 

 considering the question of undertaking regular observations in various 

 localities ; and that Mr. John Murray be the Secretary. 



That Professors A. Johnson, Macgregor, J. B. Cherriman, and H, J. 

 Bovey, and Mr. C. Cai'pmael be reappointed a Committee for the purpose 

 of promoting Tidal Observations in Canada ; and that Professor Johnson 

 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 Professor G, H. Darwin, Sir W. Thomson, and Major Baird be 

 a Committee for the purpose of preparing instructions for the practical 

 work of Tidal Observation ; and that Professor Darwin 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, 

 a'^d Mr, A. Strahan be reappointed a Committee for the purpose of 

 investigating the Rate of Increase of Underground Temperature down- 



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