920 
INDEX. 
D. 
Darwin (G. H.). On the Tidal Friction of a Planet attended by several Satellites, and on the Evolution 
of the Solar System, 491 (for contents see p. 491). 
Definite integrals in connexion with Riccati’s equation, 759 (see Glaisher). 
Dinosaur, a large, from the Weal den formation, 653. 
E. 
Echinudermata, locomotor system of, 829 (see Romanes). 
Electric currents, induction of, 307. 
Electric discharge, resistance of air to, at different degrees of exhaustion, 406. 
Electricity, distribution of, on a tore, 642. 
Electrostatic capacity of glass, 355 ; of liquids, 369. 
Ewart (J. C.) and Romanes (G. J.) (see Romanes). 
Festing (E. R.) and Abney (W. de W.) (see Abney). 
Films, colours of, 451; electrical resistance of, 457. 
Fluid motion around a tore, 644. 
Fossil plants of coal-measures, 283 (see Williamson). 
G. 
Glaisher (J. W. L.). On Riccati’s Equation and its Transformations, and on some Definite Integrals 
which satisfy them, 759.—Introduction, 759 (for the headings of the eight sections of the paper see 
p. 766). 
H. 
Hicks (W. M.). On Toroidal Functions, 609.—General theory of conjugate curvilinear coordinates in 
three dimensions. Special case, 611; zonal toroidal functions, 617; sectorial and tessera! functions, 
629; tores with no central opening, 638; examples and applications, 640. 
Hopkinson (J.). Electrostatic Capacity of Glass, II., and of Liquids, 355. 
Hulke (J. W.). Polacanthus Foxii, a large undescribed Dinosaur from the Wealden formation in the 
Isle of Wight, 653. 
I. 
Induction balance, five-plate, examination of, 366. 
Induction of electric currents, 307. 
L. 
Langley (J. N.). On the Histology and Physiology of Pepsin-forming Glands, 663 (for contents see 
p. 663). 
Lockyer (J. N.). Researches in Spectrum-Analysis in connexion with the Spectrum of the Sun.— 
No. V., 561 (for contents see p. 561). 
