INDEX.
- Absorbed heat changed into chemical separation, 114.
- into actual visible energy, 105.
- into light and heat, 117.
- Acquisition, 232.
- Actinic rays, 129.
- Action and reaction equal and opposite, 8.
- Affinity, chemical, 53.
- Air and water in motion, 147.
- Albuminoids, 177, 183.
- Amber, 61.
- Ampère, 75.
- Amyloids, 177, 183.
- Ancients, their ideas not prolific, 135.
- Andrews, 141.
- Animal heat, 207.
- Animals, how they live, 188.
- Animals and inanimate machines, 165.
- Aristotle on a medium, 134.
- on mind and body, 207.
- Atmospheric circulation, 109.
- Atomic forces and heat, 58.
- Atomic or chemical separation, 80.
- Atoms and molecules, 51.
- Attention, 232.
- Attraction, molecular, 52.
- mutual, of atoms, 54.
- and repulsion of magnets, 75.
- of electric currents, 75.
- Caloric, 38.
- Carnivora, 189.
- Chemical affinity, 53.
- and electrical attraction, 64.
- and heat, 58.
- Chemical combination producing heat, 119.
- Chemical instability, 156.
- Chemical separation converted into electrical separation, 122.
- into electricity in motion, 123.
- Chlorophyll, 177.
- Chrysalis, 187.
- Circulation of the atmosphere, 109.
- Clausius, 141.
- Cohesion, force of, 51.
- Cold apparently produced by the electric current, 126.
- Conduction of electricity, 61.
- Conservation, laws of, 82.
- theory of, 140.
- Crossbow and watch-spring, 25.
- Current, the electric, 69.
- and magnetism, 72.
- heating effect of, 73.
- chemical effect of, 74.
- Currents, electric, attraction and repulsion of, 74.
- induction of, 75.
- Dalton, 133.
- Davy, Sir Humphrey, 38, 137.
- Democritus on atoms, 133.
- Descartes, 136.
- Diastase, 184.
- Disease-germs, 3.
- Dissipation of energy, 141.
- Dissociation, 115.
- Egg, development of the, 186.
- Electric current, 69.
- and magnetism, 72.
- heating effect of, 73.
- chemical effect of, 74.
- induction, 65.
- Electrical attraction and chemical affinity, 64.
- Electrical separation, 81.
- when produced, 64.
- transmuted into visible motion, 124.
- into electric current, 124.
- Electro-magnetism, 72.
- Elastic forces, 50.
- Electricity, 60.
- vitreous and resinous, 63.
- negative and positive, 63.
- theory of, 63.
- in motion, 81.
- transmuted into visible motion, 124.
- into heat, 125.
- into chemical separation, 127.
- Encke’s comet, 96.
- Energies, list of, 78-82.
- natural, and their sources, 143.
- Energy, meaning of, 1-22.
- of bodies in motion proportional to their weight or mass, 14.
- proportional to the square of the velocity, 19.
- of visible motion, its transmutation, 87.
- visible, transformed into absorbed heat, 88.
- dissipation of, 141.
- transmutations of, 27.
- varies as the square of the velocity, 15.
- of motion, 24.
- transformed into electrical separation, 98.
- of position, a sort of capital, 26.
- Equilibrium, 154.
- Etiolation, 180.
- Fermentation, 183.
- Food, 145.
- Force, vital, whence derived, 171.
- physical, 194.
- chemical, 194.
- of chemical affinity, 53.
- of cohesion, 51.
- Force, mechanical or molar, 205.
- molecular, 205.
- Friction, 35.
- Heat, absorbed, changed into chemical separation, 114.
- into electrical separation, 115.
- into electricity in motion, 116.
- Heat-units of different substances, 119.
- Heat-motion, 80.
- Heat-engines, their essential conditions, 107.
- Helmholtz, 141.
- Heraclitus on energy, 133.
- Herbivora, 191.
- Heterogeneity essential in electrical development, 64.
- Huyghens, 137.
- Hydraulic press, 32.
- Inclined plane, 28.
- Incubation, 186.
- Individuals, our ignorance of, 1.
- Induction, electric, 65.
- of electric currents, 75.
- Instability, mechanical, 155.
- chemical, 156.
- Intellectual labor, 234.
- Kilogrammetre, 16.
- Larva, 187.
- Latent heat, 57.
- Laws of conservation, 82.
- Life depends on the sun, 165.
- Light, a perpetual, impossible, 149.
- Lime, carbonate, easily decomposed, 58.
- List of energies, 78-82.
- Machines, their true function, 33.
- animated and inanimate, 157.
- Magnets, attachment and repulsion of, 75.
- Maxwell, 141.
- Mayor, 140.
- Mechanical energy changed into heat, 23.
- equivalent of heat, 43.
- force, 205.
- instability, 155.
- Mental forces, mutual correlations of, 227-236.
- Mind, its correlations to natural forces, 218-227.
- and body, 207, 211.
- Molar force, 205.
- Molecular attraction and heat, 55.
- separation, 80.
- Molecules, ultimate, of matter, 5.
- their motions, 7.
- and atoms, 51.
- Motion changed into an electric current, 99.
- Muscular power, 207.
- Narcotic stimulants, 229.
- Negative and positive electricity, 63.
- Nerve power, 207.
- Newton, 136, 137.
- Non-conductors of electricity, 61.
- Percussion, 36.
- Perpetual motion, 139.
- Physical force, 194.
- Plants growing at night, 181.
- Positive and negative electricity, 63.
- Protoplasm, 177.
- Pulleys, their function, 30.
- Radiant energy, 81.
- converted into absorbed heat, 123.
- promoting chemical separation, 123.
- Rankine, 141.
- Resinous and vitreous electricity, 63.
- Rotation of earth retarded, 95.
- Rumford, 39, 137.
- Silver oxide readily decomposed, 58.
- Solar rays, decomposition by, 59.
- Sulphur, 146.
- Sun—a source of high-temperature heat, 148.
- Sun’s heat, origin of, 150.
- spots, auroras, and cyclones correlated, 98.
- Tait, 141.
- Temperature of dissociation, 115.
- Thermo-electricity, 116.
- Thermopile, 117.
- Thomas Aquinas, 209.
- Thomson, William and James, 140.
- Tides, 146.
- Tissues, decay of, 164.
- Vegetation, 176.
- Velocity and energy, relation between, 16.
- Virtual velocities, 34.
- principle of, its history, 137.
- Vital force, whence derived, 171.
- Vitality, 194.
- Vitreous and resinous electricity, 63.
- Voltaic current, 69.
- and magnetism, 72.
- heating effect of, 73.
- chemical effect of, 74.
- Water at high level, 24.
- Watt, 138.
- Wild’s electro-magnetic machine, 103.
- Will, 194.
- Work, definition of, 15.
- unit of, 15.
- rise of true conceptions regarding, 138.
- Yeast-plant, 185.
THE END.