[ xvi ] 
VI. Alternate Current Dynamo-Electric Machines. By J. Hopkinson, F.R.S., and 
E. Wilson .page 229 
VII. Mathematical Contributions to the Theory of Evolution. —III. Regression, 
Heredity, and Panmixia. By Karl Pearson, University College, London. 
Communicated by Professor Henrici, F.R.S . 253 
VIII. The Rotation of an Elastic Spheroid. By S. S. Hough, M.A., Fellow of 
St. Johns College, Cambridge, and Isaac Newton Student in the University 
of Cambridge. Communicated by Professor G. H. Darwin, F.R.S. . 319 
IX. On the Magneticcd Residts of the Voyage of II.M.S. “ Penguin,” 1890-93. By 
Captain E. W. Creak, R.N., F.R.S . 345 
X. Bakerian Lecture. — -On the Diffusion of Metals. By W. C. "Roberts-Austen, 
C.B., F.R.S., Professor of Metallurgy, Royal College of Science; Chemist of 
the Mint . 383 
XI. On the Structure of Metals, its Origin and Changes. By M. F. Osmond and 
Professor Roberts-Austen, C.B., F.R.S . 417 
XII. On the Determination of the Photometric Intensity of the Coronal Light during 
the Solar Eclipse of April 16, 1893. By Captain W. de W. Abney, C.B , 
R.E., F.R.S., and T. E. Thorpe, LL.D., F.R.S. . 433 
XIII. On a Type of Spherical Harmonics of Unrestricted. Degree, Order, and 
Argument. By E. W. Hobson, Sc.D., F.R.S . 443 
XIV. Magnetization of Liquids. By John S. Townsend, M.A. (Dubl.), Cavendish 
Laboratory, Cambridge. Communicated by Professor J. J. Thomson, 
F.R.S . 533 
XV. The Toted Eclipse of the Sun, April 16, 1893. — Report and Discussion of the 
Observations relating to Solar Physics. By J. Norman Lockyer, C.B., 
F.R.S. . 551 
XVI. Memoir on the Theory of the Partition of Numbers .—Part I. By Major P. A. 
MacMahon, R.A., F.R.S. . 619 
