Ixiv REPORT 1881. 



fessor Everett, and Professor Schuster be added to the Committee ; 

 that Dr. A. Muirheadbe the Secretary, and that the sum of lOOZ. be placed 

 at their disposal for the purpose. 



That Professor Dewar, Professor A. W. Williamson, Dr. Marshall 

 Watts, Captain Abney, Mr. Stoney, Professor W. N". Hartley, Professor 

 McLeod, Professor Carey Foster, Professor A. K. Huntington, Professor 

 Emerson Reynolds, Professor Reinold, Professor Liveing, Lord Rayleigh, 

 Professor Schuster, and Mr. W. Chandler Roberts be reappointed a Com- 

 mittee for the purpose of reporting upon the present state of our know- 

 ledge of Spectrum Analysis ; that Mr. W. Chandler Roberts be the 

 Secretary, and that the sum of 51. be placed at their disposal for the 

 purpose. 



That Professors Balfour Stewart, Riicker, and T. E. Thorpe be a 

 Committee for the purpose of reporting on the Methods employed in the 

 ■Calibration of Mercurial Thermometers ; that Professor Riicker be the 

 Secretary, and that the sum of 201. be placed at their disposal for the 

 purpose. 



That Professor Roscoe, Mr. Lockyer, Professor Dewar, Professor 

 Liveing, Professor Schuster, Captain Abney, and Dr. Marshall Watts be 

 a Committee for the purpose of preparing a new series of Wave-lengths 

 Tables of the Spectra of the Elements ; that Dr. Marshall Watts be the 

 Secretary, and that the sum of 501. be placed at their disposal for the 

 purpose. 



That Dr. Hugo Miiller, Professoi's Williamson, Prankland, Roscoe, 

 and Odiing, and Mr. H. B. Dixon be a Committee for the purpose of 

 drawing up in a tabular form the varieties of chemical names which have 

 come into general use, for indicating the causes which have led to their 

 •adoption, and for considering what can be done to effect some conver- 

 gence of the views on Chemical Nomenclature obtaining among English 

 and foreign chemists ; that Mr. H. B. Dixon be the Secretary, and that 

 the sum of 101. be placed at their disposal for the purpose. 



That Professors Odiing, Huntington, and Hartley be a Committee for 

 the purpose of investigating by means of Photography the Ultra- Violet 

 Spark Spectra emitted by Metallic Elements, and their combinations 

 under varying conditions ; that Professor W. N. Hartley be the Secretary, 

 and that the sum of 251. be placed at their disposal for the purpose. 



That Dr. J. Evans, the Rev. J. F. Blake, Professor T. G. Bonney, 

 Mr. W. Carruthers, Mr. F. Drew, Professor G. A. Lebour, Professor L. 

 C. Miall, Mr. F. W. Rudler, Mr. B. B. Tawuey, Mr. W. Topley, and Mr. 

 W. Whitaker be reappointed a Committee for the purpose of carrying on 

 the Geological Record ; that Mr. Whitaker be the Secretary, and that the 

 sum of lOOZ. be placed at their disposal for the purpose. 



That Professor A. C. Ramsay, Mr. Thomas Gray, and Professor John 

 Milne be reappointed a Committee for the purpose of Investigating the 

 Earthquake Phenomena of Japan ; that Professor Milne be the Secretary, 

 and that the sum of 251. be placed at their disposal for the purpose. 



That Dr. H. C. Sorby, Professor W. J. SoUas, and Professor William 

 Ramsay be reappointed a Committee for the purpose of investigating the 

 Conditions under which ordinary Sedimentary Materials may be converted 

 into Metaraorphic Rocks ; that Professor Sollas be the Secretary, and that 

 the sum of 101. be placed at their disposal for the pui-pose. 



That Professor W. C. Williamson and Mr. W. Cash be a committee 

 for the purpose of investigating the' Fossil Plants of Halifax ; that Mr. W. 



