IXX REPORT — 1871. 



Professor Sylvester, Dr. Pole, Mr. Rogers Field, Professor Ansted, and Mr. 

 Buchan ; that Mr. G. J. Symons be the Secretary, and that the sum of £100 

 be placed at their disposal for the purpose. 



That a Committee on Underground Temperature, consisting of Sir William 

 Thomson, Professor Everett, Sir Charles Lyell, Bart., Professor J. Clerk 

 Maxwell, Professor Phillips, Mr. G. J. Symons, Professor Eamsay, Professor 

 Geikie, Mr. Glaisher, Eev. Dr. Graham, Mr. George Maw, Mr. Pengelly, 

 Mr. S. J. Mackie, Professor Edward Hull, and Professor Ansted, be apporuted ; 

 that Professor J. D. Everett be the Secretary, and that the sum of £100 be 

 placed at their disposal for the purpose. 



That the Committee on Luminous Meteors, consisting of Mr. Glaisher, 

 Mr. R. P. Greg, Mr. Alexander Herschel, and Mr. C. Brooke, be reappointed, 

 and that the sum of =£20 be placed at their disposal for the purpose. 



That Dr. Huggins, Mr. J. N. Lockyer, Dr. Reynolds, Professor Swan, and 

 Mr. Stoney be a Committee for the purpose of constructing and printing tables 

 of Inverse "Wave Lengths, Mr. Stoney to be reporter ; and that the sum of 

 £20 be placed at their disposal for the purpose. 



That Professor A. W. Wniiamson, Professor Roscoe, and Professor Frank- 

 land be a Committee for the purpose of superintending the Monthly Reports 

 of the progress of Chemistry ; and that the sum of £100 be placed at their 

 disposal for the purpose. 



Professor A. W. Williamson, Sir W. Thomson, Professor Clerk Maxwell, 

 Professor G. C. Foster, Mr. Abel, Professor Fleeming Jenkin, Mr. Siemens, 

 and Mr. R. Sabine, with power to add to their number, be a Committee for 

 the purpose of testing the N^ew Pyrometer of Mr. Siemens, by whom the 

 chief instrument will be supplied ; and that the sum of £30 be placed at 

 their disposal for the purpose. 



That Dr. Gladstone, Dr. C. R. A. Wright, and Mr. Chandler Roberts be a 

 Committee for the purpose of investigating the chemical constitution and 

 optical properties of essential oils, such as are used for perfumes ; that Mr. 

 Chandler Roberts be the Secretary, and that the sum of £40 be placed at 

 their disposal for the purpose. 



That the Committee, consisting of Professor Crum Brown, Professor Tait, 

 and Mr. Dewar, be reappointed for the purpose of continuing experiments on 

 the Thermal Equivalents of the Oxides of Chlorine ; and that the sum of £15 

 be placed at their disposal for the purpose. 



That Dr. Duncan, Mr. Heniy Woodward, and Mr. Robert Etheridge be a 

 Committee for the purpose of continuing researches in Fossil Crustacea ; that 

 Mr. Woodward be the Secretary, and that the sum of £25 be placed at their 

 disposal for the purpose. 



That Sir C. LyeU, Bart., Professor Phillips, Sir J. Lubbock, Bart., Mr. J. 

 Evans, Mr. E. Yivian, Mr. W. Pengelly, Mr. G. Busk, Mr. W. B. Dawkins, 

 and Mr. W. A. Sandford be a Committee for the purpose of continuing the 

 Exploration of Kent's Cavern, Torquay ; that Mr. Pengelly be the Secretary, 

 and that the sum of £100 be placed at their disposal for the purpose. 



That Professor Harkness and Mr. James Thomson be a Committee for the 

 purpose of continuing the investigation of Carboniferous Corals with the view 

 of reproducing them for pubhcation ; that Mr. Thomson be the Secretary, and 

 that the sum of £25 be placed at their disposal for the purpose. 



That Mr. G. Busk and Mr. Boyd Dawkins be a Committee for the purpose 

 of assisting Dr. Leith Adams in the preparation of Plates illustrating an 

 accouut of the Fossil Elephants of Malta ; that Mr. Busk be the Secretary, 

 and that the sum of £25 be placed at their disposal fcr the purpose. 



