tenberg@html@files@51897@51897-h@51897-h-3.htm.html#Page_63" class="pginternal">63.

Effects produced by loss of heat, 69.

Eggs, number of, laid by insects, 399.

Elective affinity, 292.

Electricity, 193.

Electricity and light influencing crystallization, 57.

——, kinds of, 195.

—— contained in water, 203.

—— developed by chemical action, 204.

——, velocity of, 231.

—— of plants, 380.

Electric condition of matter, 5.

—— telegraph, the, 231.

—— affinity, 275.

Electrical phosphorescence, 160.

—— action influenced by actinism, 183.

—— radiations, 190.

—— clock, 233.

Electro-chemistry, 206.

Electro culture, 223.

Electrotype, the, 229.

Electro-chemical decomposition, 208.

Electro-magnetism, 240.

Electrum, 193.

Elements, chemical, 37, 272.

——, atmospheric, 325.

——, interchanges of, 319.

Englefield on heat rays, 67.

Eocene formations, 346.

Equinoxes, precession of the, 244.

——, the vernal and autumnal, 77.

Epicurus’ hooked atoms, 48.

Epipolic phenomena, 129.

Eremacausis, 105.

Ether, hypothesis of an, 120.

Examples of crystallization, 59.

Expansion of bodies by heat, 96.

Eye, mechanism of, 149.

Faraday on Magnetism of Crystals, 59.

—— on solidification of gases, 112.

—— on magnetization of light, 147.

—— on the gymnotus, 211.

—— on diamagnetism, 254.

Ferro-magnetic bodies, 255.

Fish Lizard, the, 341.

Fixed stars, light of, 122.

Flint glass, permeability to heat, 65.

Flora, fossil, 345.

Flowers, influences of, 317.

Fluid, magnetic theory of, 252.

Fluorescence of light, 130.

Forbes, Prof. Jas., on vibrations of heated metals, 97.

Forbes, Prof. Edward, on zones of life in the ocean, 127.

Forbes on colour of steam, 321.

Force producing motion, 9.

—— a cause of motion, 17.

——, molecular, 263.

—— and electricity, correlation of, 239.

—— and crystallisation, 57.

Magneto-electrical decomposition, 230.

Magnetisation of light, 146.

Malus on polarisation, 139.

Mammalia, fossil, 343.

Man, temperature of, 105.

Manganesiate of potash, 171.

Mantell, Dr., on the iguanodon, 343.

Mariotte on seat of vision, 149.

Matter, its general conditions, 1.

——, forms of, 21.

——, transmutation of, 37.

——, divisibility of, 38.

——, solid, absorption of heat by, 75.

——, influence of, on light, 162.

——, polarity of, 265.

—— and its properties, 409.

——, entity of, 410.

——, varied condition of, 36.

Mayer’s hypothesis of three colours, 138.

Mechanical force and heat, 103.

Mechanism of the eye, 149.

Media, influence of, on light, 128.

MedusÆ, phosphorescence of, 159.

Melloni on coloured heat rays, 85.

—— on new nomenclature for heat, 95.

Mesmer and electricity, 222.

Metamorphic rocks, 336.

Metamorphoses of animals, 389.

Mexico, Gulf of, warmth of the, 81.

Mica, black, transparency to heat, 66.

Miller, Dr., on dark lines of the spectrum, 126.

Mineral veins, electricity of, 225.

Mines, Cornish, temperature of, 91.

Miocene formations, 346.

Mirrors, magic, 191.

Mitscherlich on expansion of crystals by heat, 257.

Molecular forces, 35, 40.

——, compound action of, 279.

Molecules, Dumas on, 39.

—— combination, 277.

Morichini and Carpi on magnetism of violet rays of light, 263.

Moser on invisible light, 189.

Motion, 7.

—— a property of matter, 8.

——, principles of, 10.

—— of the earth, 12.

—— round an axis shows the earth’s motion, 18.

——, influence of, on form, 32.

Mountain ranges probably determined by magnetic force, 262.

Multiplication of life, 399.

Musical notes produced by heat, 97.

Muscular contraction by electricity, 202.

Musschenbroek of Leyden, 198.

Mythology, ancient, probable origin of, THE END.

Wilson and Ogilvy, 57, Skinner Street, Snowhill, London.

---