[ Vi ] 
VIII. Magnetisation of Iron. By John Hopkinson, M. A., D.Sc., F.R.S. . page 455 
IX. Tile Absorption Spectra of the Alkaloids. By W. N. Hartley, F.R.S ., Professor 
of Chemistry, Royal College of Science, Dublin . 4 71 
X. Experimented Researches in Magnetism. By Professor J. A. Ewing, B.Sc., 
F.R.S.E., University College, Dundee. Communicated by Sir William 
Thomson, F.R.S. . 523 
XI. Observations on the Chromatology of Actinia. By C. A. Mac Munn, M.A., 
M.D. Communicated by Professor M. Foster, Sec. R.S . G41 
XII. On the Development and Morphology of Phylloglossum Drammondii. By 
Professor F. O. Bower. Communicated by W. T. Tbiselton Dyer, 
F.R.S . 665 
XIII. Residts deduced from the Measures of Terrestrial Magnetic Three in the 
Horizontal Plane, at the Royal Observatory, Greenuich, from 1841 to 1876. 
By Sir G. B. Airy, K.C.B., F.R.S., late Astronomer Royal . 679 
XIV. On Radiant Matter Spectroscopy .—Part II. Samarium. By William 
Crookes, F.R.S. . 691 
XV. Researches on the Theory of Vortex Rings .—Part II. By W. M. Hicks, M.A., 
F.R.S., Principal and Professor of Mathematics and Physics in Firth College, 
Sheffield . 725 
XVI. On the Clark Cell as a Standard of Electro-motive Force. By Lord 
Rayleigh, M.A., D.C.L., Sec. R.S. . 781 
Index to Volume 
801 
