CONSULTING INDEX 
TO THE 
PRINCIPAL NAMES AND SUBJECTS* MENTIONED IN THE FOLLOWING DISSERTATION. 
The References are to the Articles or Paragraphs, not to the Pages. 
Abel, 98. 
Absorption of Light, 536. 
Acceleration of the Moon, Secular, 62. 
Acoustics, 433, &e. 
Adams, Mr, 127, &c. 
Airy, Mr, 82,115, 228, &c. ; 421, 549,879. 
Ampere, 792, 794, &e. 
Arago, 166, 500, 792. 
Asteroids, 282, List of, 283, and Addi- 
tions, p. 996. 
Astronomy, Physical, 41, &c.; Practical, 
149, &e.; 218, &. ; Sidereal, 172, &e. ; 
289, &e. 
Atomic Theory, Dalton’s, 618. 
Attraction of Spheroids, 99, &c.; of Moun- 
tains, 154, &e. 
Attractions, Theorems about, 99, &e. ; 
877, 905. 
Babbage, Mr, 377. 
Baily, 158, 242, &e. 
Balloon ascents, 630, and note. 
Barlow, Mr. 879. 
Berzelius, 763, 767, and note. 
Bessel, 221, 310. 
Biaxal Crystals, 529; Theory of, 493. 
Biot, M., 545, 662. 
Black, 318, 583. 
Block Machinery, 370. 
Borda 237, &c. 
Bowditch, 126. 
Brewster, Sir David, 519, &e. 
Bridges, Suspension, 351; Wooden, 356 ; 
Girder, 358 ; Tubular, 359, &. 
Brinkley, 307, and note. 
Brunel, Sir M, I., 366. 
Cagniard de la Tour, M., 441. 
Calculating Engine, 377. 
Calorimeter, £8, 607. 
Calotype, The, 571. 
Canal Navigation, 422. 
Capillary Attraction, 88, 432. 
Catenary, 353. 
Cauchy, M., 556. 
Cavendish, 156, 593, &e.; 871. 
Cavendish Experiment, 156, &c. 
Chances, 83. 
Chemical Subjects connected with Na- 
tural Philosophy, 582, 596, 618, &c. ; 
768, &c.; 811. 
Chemical action of Light, 562. 
Chemical Equivalents, 628. 
Chemical Theory of Galvanism, 751, 763, 
‘81l. 
Chladni, 434, 
Civil Engineering, 312-431. 
Clairaut, 235. 
Clock, Electric, 231, 862. 
Coloration of Heat, 713, 
Combustion, 608, 775. 
Comets, 262; Halley’s, 263; Encke’s, 
267; Gambart’s or Biela’s, 276; Co- 
mets of 1811 and 1843, 281. 
Conduction of Heat, 661, &e. 
Conduction of Electricity, 813, 842. 
Cornish Steam Engines, 323. 
Conical Refraction, 551. 
Cooling, Law of, 654, 694. 
Coulomb, 339, 413, 873. 
Daguerre, 569. 
Dalton, 610, 721, note. 
, Daniell, 852. 
Davy, Sir H., 758, &.; 792, 808. 
Declination of the Needle, 881. 
Delambre, 164, &c, 
De la Roche, 704. 
Density of the Earth, 154, &e. 
Depolarization, 505. 
Detrusion, 346, 
Diamagnetism, 823. 
Diffraction of Light, 458, 486, &c. 
Dip, Magnetic, 882, note ; 883. 
Discontinuous functions, 31, 685. 
Dispersion of Light, 559. 
Double Refraction, 475, &e. 
Du Bois-Reymond, M., 739. 
Dubuat, 410. 
Dulong, 693, 721. 
Earth's Figure, 163, 234, 249, &c.; Den- 
sity, 154, &c. ; Rotation, 258. 
Earth, Proper Heat of the, 675, 
Kconomical application of Heat, 634. 
Elastic Solids, 342, &e. 
Electricity, 728, &.; Animal, 734, 738, 
872; Atmospheric, 743; Mathemati- 
cal Theory of, 869, &c.; Distribution 
of, 871, 874. 
Electric Telegraph and Clock, 856, &e. 
Electro-Chemistry, 751, 754, 763, 811. 
Electrodynamic Machines, 866. 
Electro-Magnetism, 786, &c. 
Electroty pe, 868. 
Ellipticity of the Earth, 256. 
Ellis, Mr Leslie, 20, note ; 86. 
Emanation of Radiant Heat, 651, 667. 
Encke, M. 262, &c.; Encke’s Comet, 267. 
English Arc of Meridian, 167. 
Erman, M, Ad., 885. 
Evaporation, 613, 744. 
Everest, Colonel, 250. 
Expansion of the Gases, 617, 721, and 
note. 
Fabbroni, 751. 
Fairbairn, Mr W., 363. 
Faraday, Dr, 798, 807, &c. 
Fechner, 851. 
Figure cf the Earth, 163, &.; 234, &e. 
249, &c.; Results, 256. 
Flame, 770. 
Flexurs of Beams, 347, &c. 
Fluids, Friction and Resistance of, 410. 
Fluorescence, 579. 
Foucault, M., 258, 514. 
Fourier, 663, &e. 
Fourneyron’s Turbine, 427. 
Fraunhofer, 538. 
French Arc of Meridian, 165, 
French experimenters, Skill of, 720. 
Fresnel, 468, 485, &. 
Frog, Electricity of the, 734. 
Galle, M., 137. 
Galloway, 212. 
Galvani, 728, &e. 
Galvanism, Discovery of, 732. 
Gases and Vapours, Dalton’s Theory of, 
613, 615, 617. 
Gauss, 48, 856, 896. 
Gay-Lussac, 617, 625, 630. 
Green, 658 and note, 878. 
Greenwich Observatory, 150, 159, 227. 
Gregory, Duncan, 31, note. 
Halley, 882. 
Hamilton, Sir W. R., 550, 552, note. 
Hansen, M.,'57, note; 122, &c., 261. 
Hunsteen, Professor, 881, &e. 
Heat, 582, &c.; Economical Applica- 
tions of, 634; Hypothesis on the Na- 
ture of, 639; Radiant, 641, &.; 692, 
&c. ; Mathematical Theory of, 661, &c.; 
Motion in a Sphere, 673; Solar, 679. 
Heliometer, 310, 
Henderson, 304. 
Herschel, Caroline, 269, note. 
Herschel, Sir J. F. W., 294, 549. 
Herschel, Sir William, 172, &. ; 702. 
Hind, Mr, 282. 
Historic periods in Science, 2, &e. 
Hodgkinson, Mr, 352, 353, 363. 
Hooke, 452. 
Hope, 636. 
* For the Grounds of Selection of these, and on the Use of the Index, see Articles (13) and (23). 
