[ 529 ] INDEX TO THE PHILOSOPHICAL TRANSACTIONS, Series A, V ol. 192. A. Algebraic Functions expressed as uniform Automorphic Functions (Whittaker), 1. Anatysis—Partition-linear, Diophantine-linear (MacMahon), 351. Automorphic Functions corresponding to Algebraic Relations (Whittaker), 1. B. Bramley-Moore (L.). See Pearson, Lee, and Bramley-Moore. C. Clouds, produced by Ultra-violet Light; Nuclei for the Production of (Wilson), 403. Condensation Nuclei, produced by Rontgen Rays, &c.; Degree of Supersaturation necessary for condensation; behaviour in Electric Field (Wilson), 403. Correlation between Long Bones and Stature (Pearson), 169. Crystals (quartz), gravitative Action between (Poynting and Gray), 245; thermal Expansion of (Tutton), 455. Curve of Error, Tables relating to (S heppard), 101, Cyclotomic Functions (MacMahon), 351. D. Differential Equations satisfied by Automorphic Functions (Whittaker), 1. YOL. CXCII.— A. 3 Y 530 INDEX. E. Kvolution, Mathematical Contributions to Theory of (P earson), 169, 257. F. Flames containing Salt Vapours, Electrical Conductivity of (Wilson), 499. G. Generating Functions, graphical representation of (MacMahon), 351. Goniometer, improved cutting and grinding, for preparation of Plates and Prisms of Crystals (Tutton), 455. Gravitation Constant of Quartz: an Experiment in Search of possible Differences (Poynting and Geay), 245. Geay (P. L.). See Poynting and Geay. H. IIicks (W. M.). Researches in Vortex Motion.—Part III. On Spiral or Gyrostatic Vortex Aggregates, 33. I. Inheritance of Fecundity, Fertility and Latent Characters (Peaeson, Lee, and Beamley-Mooee), 257. Ionic Velocities directly measured (Masson), 331. Ionisation of Salt Vapours in Flames (W ilson), 499. Ions, velocity in Flames and Hot Air (Wilson), 499. L. Lee (Alice). See Peaeson, Lee, and Beamley-Mooee. M. MacMahon (Major P. A.). Memoir on the Theory of the Partitions of Numbers.—Part II., 351. Masson (Oeme). Ionic Velocities, 331. Numbers, partitions of (MacMahon), 351. P. Peaeson (Kael). Mathematical Contributions to the Theory of Evolution.—V. On the Reconstruction of the Stature of Prehistoric Races, 169. Peaeson (Kael), Lee (Alice), and Beamley-Mooee (Leslie). Mathematical Contributions to the Theory of Evolu­ tion.—VI. Genetic (Reproductive) Selection: Inheritance of Fertility in Man, and of Fecundity in Thoroughbred Racehorses, 257. INDEX. 531 Potential Pall, in Flames containing Salt Vapours (Wilson), 499. Poynting (J. H.) and Gray (P. L.). An Experiment in Search of a Directive Action of one Quartz Crystal on another 245. Probability, Theory of; Errors of Random Selection (S iieppard), 101. S. Selection, reproductive or Genetic (P eabson, Le e, and Bramley-Moore), 257. Sheppard (VV. F.). On the Application of the Theory of Error to Cases of Normal Distribution and Normal Correlation, 101. Stature, reconstruction of, from Bones (Pearson), 169. T. Thermal Expansion of Crystals, determination of (Tutton), 455. Tutton (A. E.). The Thermal Deformation of the Crystallised Normal Sulphates of Potassium, Rubidium, and Caesium, 455. V. Variation and Correlation of Variations; Test of Existence of Normal Law (Sheppard), 101. Variations, racial and individual (Pearson), 169. Vortex Atoms and the Periodic Law (H icks), 33. Vortex, spherical, of Hill—Extension to Poly-ads (H icks), 33. W. Whittaker (E. T.). On the Connexion of Algebraic Functions with Automarphic Functions, 1. Wilson (C. T. R.). On the Condensation Nuclei produced in Gases by the Action of Rontgen Rays, Ultra-violet Light, and other Agents, 403. W ilson (Harold A.). On the Electrical Conductivity of Flames containing Salt Vapours, 499. err a ta . P. 123, line 9. For f (a/3', y', . ..), ( a ',ft', , . .). P. 128. The expression at the end of § 20 should he multiplied by k\ P. 131, line 8. For read, 2a*/n. LONDON: HARRISON AND SONS, PRINTERS IN ORDINARY TO HER MAJESTY, ST. MARTIN’S LANE, W.C. THE ROYAL SOCIETY. Nov. 30,1898 H e r S a c r ed M a je s t y QUEEN VICTORIA, P a t r o n . Date of Election. 1863. Feb. 12. HIS ROYAL HIGHNESS THE PRINCE OF WALES, K.G. 1882. Mar. 16. HIS ROYAL HIGHNESS THE DUKE OF SAXE COBURG AND GOTHA, K.G. 1893. June 8. TITS ROYAL HIGHNESS THE DUKE OF YORK, K.G. THE COUNCIL OF THE ROYAL SOCIETY. •-+0 0 0 - THE LORD LISTER, F.R.C.S., D.C.L., LL.D.— P resident. PROF. THOMAS GEORGE BONNE Y,D.Sc.— JOSEPH LARMOR, D.Sc. V ice-P resident. PROF. NEVIL STORY MASKELYNE, M.A.— CAPTAIN ETTRICK WILLIAM CREAK, R.N. V ice-P resident. PROF. DANIEL JOHN CUNNINGHAM, M.D. SIR ANDREW NOBLE, K.C.B. PROF. JAMES DEWAR, M. A. PROF. EDWARD BAGNALL POULTON, PROF. MICHAEL FOSTER, M.A., M.D., D.C.L., M.A. LL.D.—S ECRETARY. PROF. ARTHUR WILLIAM RUCKER, M l,, SIR EDWARD FRANKLAND, K.C.B., D.C.L., D.Sc.—S ecretary. LL.D.—F oreign S ecretary. WILLIAM JAMES RUSSELL, Ph.D. — V ic e - PROF. WILLIAM DOB1NSON HALLIBURTON, P r e s i d e n t . M.D. PROF. ARTHUR SCHUSTER, Ph.D. PROF. WILLIAM ABBOTT HERDMAN, D.Sc. DUKINFIELD HENRY SCOTT, M.A. VICTOR A. H. HORSLEY, F.R.C.S. GEORGE JOHNSTONE STONEY, D.Sc. ALFRED BRAY KEMPE, M,A—Treasurer and PROF. JOSEPH JOHN THOMSON, M.A. V ice-P resident. This Council will continue till November 30, 1899. Assistant-Secretary and Librarian. ROBERT HARRISON. Cleric. Assistant Librarian. THEODORE E. JAMES. A. HASTINGS WHITE. Office Assistant. RICHARD CHAPMAN. Omissions having occasionally occurred in the Annual List of Deceased Fellows, as announced from the Chair at the Anniversary Meeting of the Royal Society, it is requested that any information on that subject, as also Notice of Changes of Residence, be addressed to the Assistant Secretary. A 2 FELLOWS OF THE SOCIETY. NOVEMBER 30, 1898. (C) prefixed to name indicates tlie award of the Copley Medal. (R) . .. .. Royal Medal. (R m ) . .. .. Rumford Medal. (D) • .. .. Davy Medal. (Dw.) . .. .. Darwin Medal. (B ) . .. .. 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S.E.; and Athenamm Club. S.W. May 7, 184(5. ’01-02 Armstrong, William George, Lord, C.B. D.C.L. (Oxon.) LL.D. (Cantab.) M.E (Dubl.) Ord.SSrum- Maur. et Lazar. Ital. Gr. Off.; Ord. Dannebrog et Ord Jes. Christ Portog. Com.; Ord. Fr. Jos. Austrian, Ord. Car. III. Hisp. et Ord Imp. Bras. Posae Ecp Athenamm Club; Crag side. Rothbury; upon- Tyne. Jane 3, 1880. * A tt field, John, M.A. Ph.D. (Tub.) F.I.C.