507 



Halliburton (W. D.) See Mott and Halliburton. 



Harker (J. A.) and Chappuis (P.) A Comparison of Platinum and Gas Thermo- 

 meters, including a Determination of the Boiling Point of Sulphur on the 

 Nitrogen Scale, 327. 



Head (H.) elected, 206 ; admitted, 252. 



Heape (Walter) Note on the Fertility of different Breeds of Sheep, with Re- 

 marks on the Prevalence of Abortion and Barrenness therein, 99. 

 Heat Insulators, Conductivity of (Lamb and Wilson), 283. 

 Hele-Shaw (H. S.) elected, 206 ; admitted, 252. 



Heredity, Experimental Contributions to the Theory of (Ewart), 243. 



Impact with a Liquid Surface studied by aid of Photography (Worthington and 

 Cole), 153. 



Inheritance, in Parthenogenesis (Warren), 154; of Longevity (Beeton and 



Pearson), 290. 

 Inoculation, preventive (Haffkine), 252. 

 Intestinal Absorption (Reid), 94. 



Ions, Diffusion into Gases (Townsend), 192 ; Efficiency of, as Condensation Nuclei 

 (Wilson), 289. 



Keeble (F. W.) and Gamble (F. W.) The Colour-Physiology of Bippolyte 

 varians, 461. 



Kerr (J. Graham) The External Features in the Development of Lepidosiren 



paradoxa, Fitz., 160. 

 Kew Observatory Committee, Report of, for year ending December 31, 1898, 1. 



Lamb (C. G.) and Wilson (W. G.) The Conductivity of Heat Insulators, 283. 

 Lawes (Sir J. B.) and Gilbert (Sir J. H.) Agricultural, Botanical, and Chemical 



Results of Experiments on the Mixed Herbage of Permanent Grass-land, 



conducted for many years in succession on the same Land. Part III. The 



Chemical Results, 329. 

 Leonid Stream, Orbit of Part encountered by Earth, November 15, 1898 (Ram- 



baut), 321. 



Lepidosiren paradoxa, Fitz., Development of (Kerr), 160. 

 Light Standards, Experimental Research on (Petavel), 469. 



Lilium rnartagon, two Vermiform Nuclei in Fertilised Embryo-sac of (Sargant), 

 163. 



Lockyer (Sir Norman) On the Chemical Classification of the Stars, 186 ; 



Note on the Spectrum of Silicium, 449 ; Preliminary Table of Wave- 

 lengths of Enhanced Lines, 452. 



Luminescence of Cerium Oxide, Thorium Oxide, &c. (Swinton), 115. 



Magnetic Elements, Errors in Determination of (Chree), 375. 



Magnets, Collimator, and the Determination of Earth's Horizontal Magnetic 

 Force (Chree), 375. 



Malapterurus electricus, E.M.F. of Organ Shock and Resistance of Organ (Gotch 



and Burch), 434. 

 Manley (J. J.) See Giinther and Manley. 

 Marchanfc (E. W.) See Bljthswood and Marchant. 



Meeting of April 20, 1899, 64; April 27, 114 ; May 4, 152 ; May 18, 165; June 1, 



206 ; June 8, 252 ; June 15, 272 ; November 16, 432 ; November 23, 448. 

 Metals, Effects of Strain on Crystalline Structure (Ewing and Rosenhain), 85, 172. 

 Michelson (A. A.) Communication on Echelon-grating Spectroscope, 272. 



2 P 2 



