560 
INDEX. 
F. 
Filon (L. N. G.). On an Approximate Solution for tlie Bending of a Beam of Eeotangular Cross-Section under any System 
of Load, witli Special Keference to Points of Concentrated or Discontinuous Loading, 63. 
Flow of water, critical velocity of—variation willi temperature (Coker and Clehext), 43. 
Fohsytii (A. R.). The Differential Invariants of a Surface, and their Geometric Significance, 329. 
n. 
Heats, specific, of metals—relation to atomic weights (Tilden), 37. 
J. 
Jeans (J. II.). On the Vibrations and Stability of a Gravitating Pianet, 157. 
JoLY (C. J.). Quaternions and Projective Geometry, 223. 
L. 
Loads, concentrated, effect of, on beams (Filon), 63. 
Lockyer (Sir N.) and B.axand.vlt, (F. E.). The Spectrum of y Cygni, 20.3. 
P. 
Planetary systems, evolution of (Jeans), 157 . 
Projective geometry treated by Q.uaternions (Joly), 223. 
Q.uaternions and projective geometry (Joly), 223. 
Q- 
R. 
Refractive index of gases, dependence on temperature (Walker), 435. 
Richar3)SON (O. W.). The Electrical Conductivity imparted to a Vacuum by Hot Conductors, 497. 
Russell (W. J.). On the Formation of Definite Figures by the Deposition of Dust, 185. 
S. 
Spectrum, lla^h, in high solar latitudes, relation to Fraunhofer spectrum; wave-lengtli determinations (Etersiieu), 457. 
Stars, classification of (Lockyer and Bavandall), 205. 
Steel, magnetic, electric, and clastic effects of drawing (Ashworth), 1. 
Tilden (W. a.). The Specific Heats of Metals and the Relation of Specific Heat to Atomic Weight.—Part II., 37. 
V. 
Vacuum, electrical conductivity imparted to, by hot conductors (Richardson), 497. 
W. 
Walker (Geo. W.). (Tn the Dependence of the Refractive Index of Gases on Temperature, 435. 
HARRISON AND SONS, i'liINJ'KRS IN ORIYN'ARY TO HlS AlAJESTY, ST. SIARTIN’s LANE, LONDON, W.C. 
PRES^..TED 
