414 Index to Transactions I — XII. 



Diffraction, Dynamical Theory of: Nov. 26, 1849; ix. 1—62. 



Newton's Experiments on: May 7, 1833; v. 101—111. 



of an Object-glass with Circular aperture: Nov. 24, 1834; v. 283 — 291. 



Ditto, Ditto, Triangular Ditto: Dec. 12, 1836; vi. 431—442. 



Digitalis, Hybrid: Nov. 14, 1831; iv. 257—278. 



Discontinuous Constants, Use of: May 16, 1836; vi. 185 — 193. 

 Dispersion of Light, Hypothesis for: Feb. 22, 1836; vi. 153—184. 

 Divergent Developments, see Arbitrary Constants. 



Series: March 4, 1844; viii. 182—203. 



Double-Sixer, Construction of: May 15, 1871; xii. 366—383. 

 Durham, see Yorkshire. 



Earth and Planets, External Temperature of: March 21, 1855; ix. 628—672. 

 Earth, Theory of the Figure of; Oct. 16, 1871 ; xii. 301—318. 



Inequalities in the Surface of: Dec. 1, 1873; xii. 414 — 433. 



Ebenacea}, Monograph of: March 11, 1872; xii. 27—300. 

 Elastic Beams, Deflection of, &c.: March 11, 1850; ix. [177—190.] 



Impact of: Dec. 10, 1849; ix. 73—78. 



Fluids, Vibratory Motions of: March 30, 1829; iii. 269—320. 



Medium, Effect of Vibrations on a Sphere : April 26, 1841 ; vii. 333—353. 



Medium, Vibratory Motion of: March 15, 1847; viii. 508—523. 



Rods, see Beams. 



Solids, Motion of: Apr. 14, 1845; vni. 287—319. 



Electric Fluid, EquiHbrium of Fluids analogous to: Nov. 12, 1832; v. 1 — 63. 



Electricity, Origin of: Dec. 7, 1863; xi. 6—20. 



Electro- Magnetism, Development of by Heat: Apr. 28, 1823; n. 47 — 76. 



Elevation of Mountains by Lateral Pressure : Apr. 27, 1868 ; xi. 489 — 506. 



Elimination between Unknown Quantities: Nov. 26, 1832; v. 65 — 75. 



Ellipsoid, Centro-Surface of: March 7, 1870; xii. 319—365. 



Ellipsoids, Exterior and Interior attractions of: May 6, 1833; v. 395 — 429. 



Endosmose and Exosmose, Explanation of: March 17, 1834; v. 205 — 229. 



Equahty, Sign of: May 16, 1864; xi. 145—189. 



Equation, Algebraic, Proof of a root in every : Dec. 7, 1857 ; x. 261 — 270. 



. . Ditto, Another proof: Dec. 6, 1858; x. 283—289. 



. Ditto, Supplement to this memoir: Dec. 12, 1859; x. 327 — 330. 



relating to the breaking of bridges: May 21, 1849; viii. 707 — 735. 



to a Curve, The Intrinsic: Feb. 12, 1849; viii. 659—671. 



Ditto, Second memoir : ix. 150 — 160. 



General, to Surfaces of the second degree : Nov. 12, 1832; v. 77 — 94. 



Integration of Partial differential : June 5, 1848 ; Vlli. 606 — 613. 



Machine for resolving by Inspection : May 7, 1832 ; iv. 425 — 440. 



Equilibrium of the Arch: Dec. 9, 1833; v. 293—313. 



of Bodies in Contact: May 15, 1837; vi. 463—491. 



Molecular : March 26, 1838 ; vii. 25—59. 



Erratic Blocks, Transport of: Apr. 29, 1844; viii. 220—240. 

 Errors of Observation, Theory of: Nov. 11, 1861; x. 409—427. 



