CONTENTS. M 



Page 

 Seismological Investigations.— Eighth Report of the Committee, consisting 

 of Professor J. W. Jtjdd (Chairman), Mr. J. Milne (Secretary), Lord 

 Kelvin, Professor T. G. Bonnet, Mr. C. V. Boys, Professor G. li. 

 Darwin, Mi\ Horace Darwin, Major L. Darwin, Professor J. A. Ewing, 

 Dr. U. T. Glazebrooe, Professor C. G. Knott, Professor R. Meldola, 

 Mr. R. D. Oldham, Professor J. Perry, Mr. W. E. Plummer, Professor 

 J. H. Pointing, Mr. Clement Reid, Mr. Nelson Richardson, and 

 Professor H. H. Turner. (Drawn up by the Secretary,) 77 



I. General Notes on Stations and Registers 77 



II. The Origin of large Earthquakes recorded in 1902 and since 18!)'J 78 



III. Earthquakes and Changes in Latitude 78 



IV. Comparison of Records from three Milne Pendulums at Shide ... 81 

 V. Comparison of Registers from Shide, Kew, Bidston, and Edinburgli 81 



VI. Earthquake Commencements as recorded at Strassburg and in 



Britain 82 



VII. The Velocity of Propagation of Earthquake Vibrations 84 



Isomorphous Sulphonic Derivatives of Benzene. — Fourth Report of tlie Com- 

 mittee, consisting of Professor H. A. Miers (Chairman), Dr. H. E. Arm- 

 strong (Secretary), Professor W. P. Wynne, and Professor W. J. Pope. 

 (Drawn up by the Secretary.) 85 



Wave-length Tables of the Spectra of the Elements and Compounds. — Report 

 of the Committee, consisting of Sir H. E. Roscoe (Chairman), Dr. Mar- 

 shall AVatts (Secretary), Sir J, N. Lockter, Professor J. Dewar, Pro- 

 fessor G. D. Liveing, Professor A. Schuster, Professor AV. N. Hartley, . 

 Professor AVolcott Gibbs, and Captain Sir AA''. de W. Abney 87 



Absorption Spectra and Chemical Constitution of Organic Substances. — - 

 Fifth Interim Report of the Committee, consisting of Professor AV. Noel 

 Hartley (Chairman and Secretary), Professor F. R. Japp, Professor J. J. 

 DoBBiE, and Air. Alexander Lauder, appointed to investigate the Rela- 

 tion between the Absorption Spectra and Chemical Constitution of Organic 

 Substances 1 26 



On the Possibility of Making Special Reports more available than at present. — 

 Report of the Committee, consisting of Mr. AV. A. Shenstone (Chairman), 

 Dr. M. O. FoRSTER (Secretary), Professors E. Divers and W. J. Pope, 

 and Dr. A. W. Crossley 169 



Duty-free Alcohol for Scientific Research. — Report of the Committee, con- 

 sisting of Sir H. E. RoscoE (Chairman), Professor H. B. Dixon (Secretary), 

 Sir Michael Foster, Sir A. W. Rucker, Dr. T. E. Thorpe, Professor 

 W. H. Perkin, and Professor AV. D. Halliburton 170 



Isomeric Naphthalene Derivatives. — Report of the Committee, consisting of 

 Professor \V. A. Tilden (Chairman) and Dr. H. E. Armstrong (Secretary). 

 (Drawn up by the Secretary.) 174 



The Study of Hydro-aromatic Substances. — Report of the Committee, con- 

 sisting of Dr. E. Divers (Chairman), Dr. A. AV. Crossley (Secretary), 

 Professor W. H. Perkin. and Drs. AI. 0. Forster and Le Sueur 170 



Recent Work on Hydro- aromatic Substances. By Dr. A. W. Crossley' 179 

 On Dihydrobenzenes and on Aromatic Compounds derived from Hydro- 

 aromatic Substances. By Dr. A. W. Crossley 182 



Edenvale Caves, co. Clare. — Report of the Committee, consisting of Dr. R. F. 

 SCHARFF (Chairman), Air. R. Lloyd Praeger (Secretary), Mr. G. Coffey, 

 Profeissor G. A. J. Cole, Professor D. J. Cunningham, Mr. G. W. Lamp- 

 lughs Mr. A. McHenry, and Air. R. J. Ussher, appointed to explore Irish 

 Caves. (Drawn up by Mr. R. J. Ussher.) 183 



