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Centrifugal force, a. 330.

Dimorphism, b. 336.
Cerebral system, 6. 463.

Dioptra, a. 165.
Chemical attraction, b. 264.

Dipolarization, 6. 80, 82.
Chyle, b. 453.

Direct motion of planets, a. 138.
Chyme, b. 453.

Discontinuous functions, 6. 86.
Circles of the sphere, a. 128.

Dispensatoria, 6. 366.
Circular polarization, 6. 82, 119. Dispersion (of light), 6. 126.

progression (in Natural His- Doctrine of the sphere, a. 130.
tory), 6. 418.

Dogmatic school (of medicine), 6. 439.
Civil year, a. 117.

Double refraction, b. 69.
Climate, b. 146.
Coexistent vibrations, a. 376.

Eccentric, a. 145.
Colures, a. 131.

Echineis, a. 190.
Conditions of existence (of animals), Eclipses, a. 135.
b. 483, 492.

Effective forces, a. 359.
Conducibility, b. 143.

Elective attraction, b. 265.
Conductibility, 6. 143.

Electrical current, 6. 242.
Conduction, 6. 139.

Electricity, b. 192.
Conductivity, b. 143.

Electrics, b. 194.
Conductors, 6. 194.

Electrical tension, 6. 242.
Conical refraction, 6. 124.

Electro-dynamical, 6. 246.
Conservation of areas, a. 380.

Electrodes, 6. 298.
Consistence (in Thermotics), b. 160. Electrolytes, b. 298.
Constellations, a. 124.

Electro-magnetism, b. 243.
Constituent temperature, 6. 170. Elements (chemical), 6. 309.
Contact-theory of the Voltaic pile, b. Elliptical polarization, 6. 122, 123.
295.

Empiric school (of medicine), 6. 439.
Cor (of plants), 6. 374.

Empyrean, a. 82.
Cosmical rising and setting, a. 131. Enneads, a. 213.
Cotidal lines, a. 460.

Entelechy, a. 74.
Craters of elevation, 6. 556.

Eocene, b. 529.

Epicycles, a. 140, 145,
Dæmon, a. 214.

Epochs, a. 46.
D'Alembert's principle, a. 365. Equant, a. 175.
Day, a. 112.

Equation of time, a. 159.
Decussation of nerves, b. 462.

Equator, a. 130.
Deduction, a. 48.

Equinoctial points, a. 131.
Deferent, a. 175.

Escarpment, b. 537.
Definite proportions (in Chemistry), 6. Evection, a. 171, 172.
285.

Exchanges of heat, Theory of, 6. 143.
Delta, b. 546.
Dephlogisticated air, b. 273.

Facts and ideas, a. 43.
Depolarization, 6. 80.

Faults (in strata), 6. 537.
of heat, b. 155.

Final causes, b. 442, 492.
Depolarizing axes, 6. 81.

Finite intervals (hypothesis of), b. 126.
Descriptive phrase (in Botany), 6. 393. First law of motion, a. 322.
Dew, b. 177.

Fits of easy transmission, 6. 77, 89.
Dichotomized, a. 137.

Fixed air, b. 272.
Diffraction, 6. 79.

Fixity of the stars, a. 158.

66

Formal optics, 6. 52.
Franklinism, b. 202.
Fresnel's rhomb, b. 105.
Fringes of shadows, b. 79, 125.
Fuga vacui, a. 347.
Full months, a. 122.
Function (in Physiology), 6. 435.

Impressed forces, a. 359.JUNG
Inclined plane, a. 313.
Induction (electric), 6. 197.

(logical), a. 43.
Inductive, a. 42.

charts, a. 47.

epochs, a. 46.10
Inflammable air, b. 273. OM
Influences, a. 219.
Intercalation, a. 118. OM
Interferences, b. 86, 93. video
Ionic school, a. 56. juna M
Isomorphism, 6. 334.
Isothermal lines, 6. 146, 538. DERM
Italic school, a. 56.

[graphic]

Habitations (of plants), 6. 562. Lacteals, 6. 453.
Hæcceity, a. 233.

Latent heat, b. 160.
Hakemite tables, a. 177.

Laws of motion, first, a. 322.
Halogenes, 6. 308.

second, a. 330.
Haloide, 6. 352

third, a. 334.
Harmonics, Acute, 6. 37.

Leap year, a. 118.
Grave, 6. 38.

Leyden phial, 6. 196.
Heat, b. 139.

Librations (of planets), a. 297.
" Latent, 6. 160.

Libration of Jupiter's Satellites, a.
Heccædecaëteris, a. 121.

441.
Height of a homogeneous atmosphere, Limb of an instrument, a. 162.
6. 34.

Longitudinal vibrations, 6. 44.
Heliacal rising and setting, a. 131. Lunisolar year, a. 120.
Heliocentric theory, a. 258.

Lymphatics, b. 453.
Hemisphere of Berosus, a. 162.
Hollow months, a. 122.

Magnetic elements, 6. 222.
Homoiomeria, a. 78.

equator, b. 219.
Horizon, a. 131.

Magnetism, 6. 217.
Horoscope, a. 222.

Magneto-electric induction, b. 256.
Horror of a vacuum, a. 346.

Matter and form, a. 73.
Houses in Astrology), a. 222. Mean temperature, b. 146.
Hydracids, 6. 283.

Mechanical mixture of gases, 6. 172.
Hygrometer, 6. 177.

Mechanico-chemical sciences, b. 191.
Hygrometry, 6. 138.

Meiocene, 6. 529.
Hypostatical principles, b. 262. Meridian line, a. 164.

Metals, b. 306, 307.
Iatro-chemists, b. 263.

Meteorology, b. 138.
Ideas of the Platonists, a. 75.

Meteors, a. 86.
Ilchanic tables, a. 178.

Methodic school (of medicine), 6. 439.

Metonic cycle, a. 122.

Percussion, Centre of, a. 357.
Mineral alkali, b. 264.

Perfectihabia, a. 75.
Mineralogical axis, 6. 537.

Perigee, a. 146.
Minutes, a. 163.

Perijove, a. 446.
Miocene, 6. 529.

Periodical colors, 6. 93.
Mollusca, 6. 478.

Phases of the moon, a. 134.
Moment of inertia, a. 356.

Philolaic tables, a. 304.
Momentum, a. 337, 338.

Phlogisticated air, 6. 273.
Moon's libration, a. 875.

Phlogiston, 6. 268.
Morphology, b. 469, 474.

Phthongometer, b. 47.
Movable polarization, 6. 105.

Physical optics, 6. 52.
Multiple proportions in Chemistry), Piston, a. 346.
b. 285.

Plagihedral faces, 6. 82.
Music of the spheres, a. 82.

Plane of maximum areas, b. 380.
Mysticism, a. 209, 211.

Pleiocene, b. 529.

Plesiomorphous, b. 335.
Nadir, a. 184.

Plumb line, a. 164.
Nebular hypothesis, b. 501.

Pneumatic trough, b. 273.
Neoplatonists, a. 207.

Poikilite, 6. 530.
Neutral axes, b. 81.

Polar decompositions, b. 293.
Neutralization (in Chemistry), 6. 263. Polarization, 6. 72, 74.
Newton's rings, 6. 77, 124.

Circular, b. 82, 119.
scale of color, b. 77.

Elliptical, b. 122, 124.
Nitrous air, 6. 273.

Movable, b. 105.
Nomenclature, 6. 389.

Plane, b. 120.
Nominalists, a. 238.

of heat, b. 153.
Non-electrics, 6. 194.

Poles (voltaic), b. 298.
Numbers of the Pythagoreans, a. 82, of maximum cold, b. 146.
216.

Potential levers, a. 318.
Nutation, a. 465.

Power and act, a. 74.
Nycthemer, a. 159.

Precession of the equinoxes, a. 155.

Predicables, a. 205.
Octaëteris, a. 121.

Predicaments, a. 206.
Octants, a. 180.

Preludes of epochs, a. 46.
Oolite, 6. 529.

Primary rocks, b. 513.
Optics, 6. 51, &c.

Primitive rocks, b. 513.
Organical sciences, 6. 435.

Primum calidum, a. 77.
Organic molecules, b. 460.

Principal plane (of a rhomb), 6. 73.
Organization, b. 435.

Principle of least action, a. 380.
Oscillation, Centre of, a. 356.

Prosthapheresis, a. 146.
Outcrop (of strata), 6. 512.

Provinces (of plants and animals), 6.
Oxide, 6. 282.

562.
Oxyd, 6. 282.

Prutenic tables, a. 270.
Oxygen, 6. 276.

Pulses, b. 33.

Pyrites, b. 352.
Palæontology, 6. 519.
Palætiological sciences, 6. 499. Quadrant, a. 164
Parallactic instrument, a. 165. Quadrivium, a. 199.
Parallax, a. 159.

Quiddity, a. 234.

66

66

Quinary division (in Natural History), | Systematic Zoology, 6. 412.
6. 418.

Systems of crystallization, 6. 328.
Quintessence, a. 73.

Tables, Solar, (of Ptolemy), a. 146.
Radiata, b. 478.

Hakemite, a. 177.
Radiation, b. 139.

Toletan, a. 177.
Rays, b. 53.

Ilchanic, a. 178.
Realists, a. 238.

Alphonsine, a. 178.
Refraction, 6. 54.

Prutenic, a. 270.
of heat, b. 155.

Rudolphine, a. 302.
Remora, a. 190.

Perpetual (of Lanslerg), a. 302.
Resinous electricity, b. 195.

Philolaic, a. 304.
Rete mirabile, 6. 463.

Carolinian, a. 304.
Retrograde motion of planets, a. 139. Tangential vibrations, 6. 45.
Roman calendar, a. 123.

Tautochronous curves, a. 372.
Rotatory vibrations, 6. 44.

Technical terms, b. 389.
Rudolphine tables, a. 270, 302. Temperament, 6. 47.

Temperature, 6. 139.
Saros, a. 136.

Terminology, 6. 389.
Scholastic philosophy, a. 230.

Tertiary rocks, 6. 513.
School philosophy, a. 50.

Tetractys, a. 77.
Science, a. 42.

Theory of analogues, b. 483.
Secondary rocks, 6. 513.

Thermomultiplier, b. 154.
mechanical sciences, b. 23. Thermotics, b. 137.
Second law of motion, a. 330.

Thick plates, Colors of, 6. 79.
Seconds, a. 163.

Thin plates, Colors of, b. 77.
Secular inequalities, a. 370.

Third law of motion, a. 334.
Segregation, 6. 558.

Three principles (in Chemistry), b.
Seminal contagion, b. 459.

261.
proportions, a. 79.

Toletan tables, a. 177.
Sequels of epochs, a. 47.

Transition rocks, 6. 530.
Silicides, b. 352.

Transverse vibrations, 6. 44, 93, 101.
Silurian rocks, b. 530.

Travertin, 6. 546.
Simples, 6. 367.

Trepidation of the fixed stars, a. 179.
Sine, a. 181.

Trigonometry, a. 167.
Solar heat, b. 145.

Trivial names, b. 392.
Solstitial points, a. 131.

Trivium, a. 199.
Solution of water in air, b. 166. Tropics, a. 131.
Sothic period, a. 118.

Truncation (of crystals), b. 319.
Spagiric art, b. 262.

Type (in Comparative Anatomy), b.
Specific heat, b. 159.

476.
Sphere, a. 130.
Spontaneous generation, 6. 457. Uniform force, a. 327.
Statical electricity, 6. 208.

Unity of Composition (in Comparative
Stationary periods, a. 48.

Anatomy), 6. 483.
planets, a. 139.

Unity of plan (in Comparative Anato-
Stations (of plants), 6. 562.

my), 6. 483.
Sympathetic sounds, b. 37.
Systematic Botany, 6. 357.

Variation of the moon, a. 179, 303.

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Vegetable alkali, 6. 264.
Vertebrata, 6. 478.
Vibrations, b, 44.
Vicarious elements, 6. 334.

solicitations, a. 359.
Virtual velocities, a. 333.
Vitreous electricity, b. 195.
Volatile alkali, b. 264.
Volta-electrometer, b. 299.
Voltaic electricity, b. 239.

pile, b. 239.
Volumes, Theory of, b. 290.

Year, a. 112.

Zenith, a. 181.
Zodiac, a. 131.
Zones, a. 136.

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