INDEX.
- Abbe, Professor, 56.
- Actinism, 71.
- Adams, Professor, 195.
- Africa, 116.
- Ages, stellar, 238.
- Air:
- dancing, 17;
- a medium, 33;
- continuous, 176;
- rarefied, 179;
- motes, 181;
- nimble, 191.
- (See Atmosphere.)
- Airless Mountains, 160.
- Air-wave, 185.
- Aitken’s Researches, 181.
- Alaska, 38.
- Aldebaran, 222, 235, 236, 246.
- Algot, 228.
- Allegheny Observatory, 17, 19, 84, 86.
- (See Langley.)
- Alphonsus Ring-plain, 156.
- Alps, 39, 148, 151, 167, 181.
- (See Apennines, Lunar.)
- American Astronomers, 227.
- American Continents, 20, 21, 31.
- (See South.)
- Andalusia, 53.
- Animalculæ, 224.
- Animals:
- food, 74;
- fright, 42.
- (See Dog.)
- Antares, 238.
- Ants, 223.
- (See Insects.)
- Apennines, 151, 153, 155, 160, 167.
- (See Alps, Lunar.)
- Apples, 171.
- Arab Traditions, 194.
- (See Moslem.)
- Arago, quoted, 41, 42.
- Archimedes, 94.
- Archimedes Crater, 151–153, 155.
- Arctic Cold, 159.
- Arctic Pole, 96.
- Arcturus, 208, 211.
- Aristillus Crater, 151.
- Aristotelian Philosophy, 8.
- Arzachel, 156, 161.
- Asteroids, 128.
- Astrology, 127.
- Astronomers and Priests, 1–3.
- (See American, New, Old.)
- Astronomical Day, 85, 86.
- Atmosphere, 136, 180;
- as a shield, 216, 220.
- (See Air.)
- Atolls, 152.
- Auger, simile, 31.
- Aurora Borealis, 35, 67, 212.
- Autolycus Crater, 151.
- Axis, 9, 10.
- Babel, 96.
- Bain Telegraph, 88.
- Balloons, 176.
- Bees, 124.
- (See Insects.)
- Berkeley’s Theory, 70.
- Berlin Observatory, 233.
- Bernières’s Lens, 103.
- Bessemer Steel, 104–108.
- Birds, 172, 196, 197.
- (See Animals.)
- Black Hole, 73.
- Bond, Professor, 204.
- Boston, Mass., 88, 132.
- Bothkamp, observations at, 66.
- Breadstuffs, 78, 79.
- (See Grain, Sun-spots, Wheat.)
- Bridges, 20, 68.
- Britain, Ancient, 1, 234.
- (See England.)
- British Isles, 14, 25.
- Brocken Spectre, 55.
- Brothers, Mr., 50.
- Bubbles, 168.
- Buffer, the air as a, 216, 220.
- Bunsen’s Researches, 12.
- Burnham, W. S., 233.
- Burning-glasses, 102–104.
- Burning Heat, 160, 163.
- Cactus, 14, 24.
- Calcutta, 73.
- California, 151, 180.
- Cambric Needle (q. v.), experiment, 132.
- Cambridge Observations, 227, 245–247.
- Camera Obscura, 63.
- Campanus Crater, 163, 165.
- Candle, simile, 39.
- Cannon-ball, 5, 38, 41, 98, 135, 186, 211.
- Canopus, 234.
- Carbon, 72, 73, 107, 221.
- Carbonic-acid Gas, 219.
- Carpenter’s Studio, 140.
- Carrington’s Work, 79, 87.
- Carthage, 116.
- Cassini, 42.
- Cassiopeia, 229.
- Cataclysm, 30.
- Centimetres, 93.
- Chacornac’s Drawing, 33.
- Chambers, on sun-spots, 80.
- Charleston Earthquake (q. v.), 42.
- Chemical Elements, 221, 223.
- Cherry-stone, comparison, 196.
- Chicago:
- great fire, 134;
- astronomer, 233.
- China:
- lens, 103, 104;
- soil, 180.
- Chlorophyl, 73.
- Chocolate, simile, 107.
- Cholera, 80.
- Chromosphere, 7;
- clouds, 62;
- forms, 64–68.
- Cinders, 171.
- Clark’s Glasses, 123.
- Cliffs, 164.
- Clock, 135.
- Cloud-ocean, 179.
- Clouds:
- cirrous, 27, 28;
- beautiful, 54;
- and rain, 111;
- formed, 249.
- Coal-beds, 115.
- Coal:
- energy, 73–75, 111;
- destroyed, 97;
- wasted, 101;
- stock, 112.
- Cobweb, simile, 26.
- Cold:
- and eclipses, 40;
- in planets, 136.
- Colorado, 50.
- Colors:
- in eclipses (q. v.), 65;
- mental, 70, 71;
- in Jupiter (q. v.), 127;
- in moon (q. v.), 168;
- in stars (q. v.), 227;
- spectrum (q. v.), 236.
- Comet-hunters, 204, 207.
- Comets:
- chapter, 199–220;
- Donati’s, 201, 204, 205, 207, 209, 217;
- one part, 203;
- parts and name, 208;
- tail (q. v.), 208, 211;
- diameter and parts, 216;
- spectroscope, elements, dread, 219;
- numerous, stone, 219, 220;
- kernel, 220;
- (1858), 213–216;
- (1866), 200.
- Common, A. A., 239, 247.
- Compass, 86.
- Connecticut Observations, 186, 242.
- Converter, 104–108.
- Coral, 151.
- Corn, 111.
- (See Grain.)
- Corona, 7, 36, 37, 40, 41, 43, 45–52, 55, 56, 59, 60–62.
- Cotton-mill, 74.
- Counting, 94.
- Cracks, celestial, 163.
- Craters, 164.
- (See special names.)
- Crystalline Structure, 4, 23–27.
- Cyclones, 24, 31, 32, 68.
- Decay, 248, 249.
- Delambre’s History, 207.
- De la Rue’s Engraving, 125.
- Delfthaven, 5.
- Denning’s Theory, 197.
- Diamonds, melted, 103.
- Dies Iræ, 249.
- Dipper, 207, 208.
- (See Great Bear, Polar.)
- Diurnal Oscillation, 87.
- Dog, anecdote of, 42.
- (See Animals.)
- Donati, 201, 204, 205, 207, 209, 213, 217.
- (See Comets.)
- Double Stars, 233.
- Draper, Professor Henry, 128, 246, 247.
- Ducks, noise, 188.
- Dust, 34, 100, 101, 102, 105, 197.
- Dynamite, 182, 185, 220.
- Earth:
- relations, 3, 4;
- description difficult, 6;
- temperature (q. v.), 34, 101;
- a string of earths, 96;
- stars like, 118;
- seen from outside, 133–135;
- craters, 148.
- Earthquakes, 220.
- (See Charleston.)
- Earth-shine, 167, 172.
- Eclipses:
- total, 7, 37;
- screen, 36;
- three, 39, 55;
- partial, 40;
- singular gloom, 39–43;
- causing fright, 43;
- colors (q. v.), 48, 56, 61, 65, 66;
- (1842), 41;
- (1857), 48;
- (1869), 39, 40;
- (1870), 44, 61;
- (1871), 50, 66, 68;
- (1878), 38, 50, 57, 58.
- (See Total.)
- Egypt, 116, 234.
- (See Pyramids.)
- Electricity, 13, 75, 76.
- Electric Light, 7.
- Electric Spark, 242.
- (See Lightning.)
- Electric Storm, 84, 85, 88.
- Elizabeth, Queen, 115.
- Engine-power, 98, 111.
- England:
- fleets, 2;
- coal, 115.
- (See Britain, London.)
- Engraving, 17.
- Enigma, 228.
- Ephemera, 250, 251.
- Equatorial Landscape, 13, 17, 18, 47.
- Equatorial Telescope, 122.
- Ericsson:
- engravings, 112, 113;
- discoveries, 163.
- Eruptive Promontories, 66–68.
- Etna, 164, 181.
- Europe, size, 25.
- Evolution, planetary, 139.
- Explosive Forces, 182–194.
- Eye, 71, 227.
- Eye-pieces, 47, 63.
- Fabricius’s Observations, 8.
- Fact and Fancy, 175.
- Factory, 73.
- Faculæ, 32, 33.
- Falling, 242, 243.
- Falling Stars, 193.
- (See Meteors, Shooting.)
- Faraday, Michael, 76.
- Fault, technical term, 156.
- Faust, 139.
- Faye:
- theory, 29–32;
- on Comets’ Tails, 212.
- Fern-like Forms, 25, 26.
- Filaments, 25–27, 30, 55, 56, 65, 66, 68.
- Fire, in sun (q. v.), 92.
- (See Flames, Heat.)
- Fixed Stars, 233.
- Flame-like Appearances, 23, 24.
- Flames, 65, 66, 69, 185.
- Flashes, 189, 195.
- Flax, 111.
- Flowers, color (q. v.), 70.
- (See Rose, Plants.)
- Foliage-forms, 32.
- Fontenelle’s Story, 133.
- Forbes’s Observations, 38, 39.
- Frankenstein, 221.
- Franklin’s Discoveries, 76.
- Fraunhofer Studies, 235.
- French Institute, 186.
- Frost-crystals (q. v.), 23.
- Furnaces, 101.
- Galileo, 8, 121–123, 139, 140.
- Gas:
- glowing, 44;
- in sun, 60.
- Gas-jets, 40, 61, 68, 88.
- Gassendi’s View, 172, 173.
- Gelinck’s Observations, 80.
- Geminids, 196.
- Genii, 193.
- Geographers and Geologists, 133.
- Glare, 14, 18, 62–64.
- Glass:
- spun, 26;
- globe, 145.
- Glow-worms, 7, 117.
- Good Hope Observations, 80.
- Gould’s Researches, 80.
- Grain, prices, 77, 80, 87.
- (See Corn, Sun-spots, Wheat.)
- Gramarye, 92.
- Grass-blades, 66, 72.
- Grasses, 26.
- Gravitation, 72, 203;
- negative, 215.
- Great Bear, 207.
- (See Dipper, Polar.)
- Green’s Maps, 130.
- Greenwich Observatory, 2, 81, 82, 84, 85, 88, 89.
- Gulliver’s Travels, 131, 132.
- (See Swift.)
- Gunpowder, 186.
- Guns, 135.
- (See Cannon-ball.)
- Hall Island, 130.
- Hall, Professor, 131.
- Hand, illustration, 168.
- Harkness’s Observations, 44.
- Harvests, 90.
- Hastings, Professor, 60.
- Heat:
- development, 13;
- concentration, 19;
- loss, 29;
- confinement, 33;
- sensation, 71;
- vibrations, 72;
- energy, 91;
- amount, 92, 97;
- computation, 94–96;
- diminution, 101;
- emission, 102;
- storage, 111;
- in sugar, 188.
- (See Flames, Sun.)
- Hecla, 164, 181.
- Hedgehog-spines, simile, 68.
- Helmholtz’s Estimates, 98.
- Hengist and Horsa, 1.
- (See Britain.)
- Hercules, 238.
- Herschel, Sir John:
- sun-spots, 12–14;
- electric storms, 88;
- comet’s tail, 216.
- Herschel, Sir William:
- avoidance of light, 18;
- prices, 79;
- sun-spots (q. v.), 129.
- Herschel’s Outlines, 11.
- Holden, Professor, 124.
- Honeycomb Structure, 30.
- Huggins’s Experiment, 234, 235.
- Humanity, deified, 172.
- Human Race, 250.
- Humboldt, 195.
- Humming-bird, 70.
- Hunt, Professor, 136, 219.
- Hydrogen, 68, 99, 237.
- Ibrahim, King, story, 194, 195.
- Ice:
- melted, 95, 96;
- never melted, 163, 164.
- Imbrian Sea, 151.
- Insects, 224, 250.
- (See Ants, Bees.)
- Iron:
- melting, 19, 107;
- appearance of cold, 25;
- in sun, 28;
- in man, 221;
- in stars, 236, 237.
- (See Steel.)
- Ironstone, 188.
- Ivy, 115.
- Janssen’s Observations, 61.
- Jevons, Professor, 80.
- Joseph in Egypt, 90.
- Jumping, 241, 242.
- Jupiter, 79, 118, 124, 127–129, 156, 185, 229.
- Kensington Museum, 221.
- Kepler, on Comets, 219.
- Kernels, 220.
- Kew, 88.
- Kirchoff’s Researches, 12.
- Krakatao, 181, 185, 186.
- La Harpe, quoted, 207.
- Landscape, 169.
- Langley, Prof. S. P.:
- drawings, 15, 16, 18, 19, 21, 22, 25, 28, 30;
- note-book, 24;
- expedition, 180;
- study of Reflection, 216.
- (See Allegheny, Pittsburg.)
- Latent Power, 220.
- Laws of Nature, 250, 251.
- Leaf-like Appearances, 23.
- (See Willow.)
- Lenses, 102, 103;
- Galileo’s, 123.
- Leo, 195, 197.
- Liais’s Drawing, 48, 50.
- Lick Glass, 123.
- Light:
- development, 13;
- day and night, 35;
- white (q. v.), 48;
- mental (see Eye), 71;
- from balloon, 179;
- transmitted, 227.
- (See Sun.)
- Lightning, 75, 76, 242, 244, 245.
- (See Electric.)
- Lily, 73.
- (See Flowers.)
- Limited Express Train, 5.
- Loaf-sugar, experiment, 188.
- Lockyer’s Land, 130.
- Lockyer’s Solar Physics, 59, 61, 236, 238.
- Lombardy, 151.
- London, 111.
- Lost Pleiad (q. v.), 207.
- Louis XV., 42.
- Louis XVI., 221.
- Lunar Alps (q. v.), 148, 149.
- (See Moon.)
- Lunar Apennines (q. v.), 153.
- Lunar Shadows, 36, 37, 39, 56.
- Lyrids, 196, 200.
- Macartney’s Lens, 103.
- Maelstrom, 27.
- Magic Lantern, simile, 220.
- Magnesium, 236, 237.
- Magnetic Needle, 81, 82, 84, 85, 87, 89.
- Mammoth Cave, 40.
- Man, chemistry of, 221, 233.
- (See Humanity.)
- Manhattan Island, 111.
- Mare Crisium, 143.
- Mare Serenitatis, 143, 144.
- Mars, 118, 128–132, 148.
- Mason’s Publication, 137.
- Matterhorn, 148, 167.
- Mayflower, 5.
- Meadows, 172.
- Mecca, 175.
- Medusa, 228.
- Memnon, 234.
- Mercator, 163, 165.
- Mercury, 3, 118, 136, 229.
- Messier, anecdote, 207.
- Metals, melted, 103.
- (See Iron.)
- Metaphysics, 70, 71.
- Meteorites:
- around Saturn, 124;
- recent, 187;
- lawsuit, 187, 188;
- analyzed, 191, 192;
- in Iowa, 199, 200;
- swarm, 200;
- cracking, 211.
- Meteors, 98, 175–198;
- (1868), 189.
- (See Falling, Shooting.)
- Meunier’s Investigations, 192.
- Mexican Gulf, 38.
- Microcosm, 222.
- Micromegas, 223.
- Microscope, 224.
- Middle Ages, 91, 175.
- Milky Way, 224, 225.
- Milton, quoted, 14, 38.
- Mind-causation, 70, 71.
- Mirror, 102, 107.
- Mississippi, 134.
- Mites, 224.
- Mizar, 207.
- M’Leod’s Drawing, 44.
- Monochromatic Light (q. v.), 63.
- Montaigne of Limoges, 207.
- Mont Blanc, 156.
- Monte Rosa, 167.
- Moon:
- practical observations, 2;
- newly studied, 3;
- distance, 4–6;
- size, 5, 6, 140, 156;
- shadows (q. v.), 36, 125;
- in sun-eclipse, 41;
- planetary relations, 117–174;
- and Jupiter, 127;
- photograph, 137;
- full, 141, 144, 147;
- Man in the, 143;
- mountains, 144;
- craters, 147, 148;
- temperature, 159;
- airless, 160;
- landscape (q. v.), 169;
- age, 171;
- broken up, 192;
- like comet, 215.
- (See Lunar.)
- Moslem Traditions, 175, 194.
- (See Arab.)
- Moss, 160.
- Mouchot’s Engravings, 109, 112.
- Mountain Sickness, 50, 53.
- Naples, 155, 157.
- (See Vesuvius.)
- Napoleon, 80, 134.
- Nasmyth’s Researches, 11, 12, 14, 24, 25, 140.
- Nativity of Jesus, 229.
- Nature’s Laws (q. v.), 176.
- Nebulæ, 247.
- Needle, 228.
- (See Cambric.)
- Neptune, 121.
- Nerves, none in camera, 47.
- Nerve Transmission, 5, 6.
- New Astronomy, 4, 75, 76, 117, 121, 171, 193, 222, 224, 227, 235, 246, 248.
- (See Old.)
- Newcomb, Professor, 55.
- Newspapers, printed by the sun, 74.
- Newton, Professor, 191, 195–197.
- Newton, Sir Isaac, 136, 203, 211;
- on Comets, 215, 219.
- Nightmare, 67.
- Northern Crown, 208, 211, 230.
- Novelists, theme for, 193, 228.
- Nucleus, 11, 19, 216.
- (See Comets, Corona.)
- Oceans, 179.
- Old Astronomy, 199, 203, 233.
- (See New.)
- Organisms in sun (q. v.), 13.
- Orion, 238, 239, 247.
- Oxygen, 73.
- Pacific Ocean, 180.
- Palinurus, 243.
- Parable, 224.
- Paris:
- Observatory, 42, 233, 247;
- Exposition, 112.
- Parker’s Lens, 103.
- Peirce, Professor, 44.
- Pennsylvania Coal, 97.
- Penumbra, 11, 19, 20.
- Perpignan, France, 42.
- Perseus, 196.
- Persian Rugs, 70.
- Philadelphia, 88.
- Philosopher’s Stone, 92.
- Phœbus, 34.
- Phosphorus, 221.
- Photographic Plate, 71.
- Photography, 9, 19, 128, 236, 237, 241, 244, 247, 248;
- rapid, 242.
- Photometer, 56, 108.
- Photometry, 230.
- Photosphere, 7, 17, 64.
- Pickering, Professor, 132, 227, 228, 246.
- Pico Summit, 148.
- Piffard, Dr. H. G., 245.
- Pike’s Peak, 50, 53–57, 60.
- Pilgrim Fathers, 5.
- Pine-boughs, 25.
- Pine-trees, 60, 72.
- Pittsburg Observations, 18, 19.
- (See Allegheny, Langley.)
- Planetoids, 196, 197, 229.
- Planets:
- condition, 97;
- pulverized, 100;
- and moon, 117–174;
- isolated, 176.
- (See Jupiter, Mars, Mercury, Saturn, Sirius, Stars.)
- Plants, 72, 73.
- (See Flowers.)
- Plato Crater, 147, 148, 151, 152.
- Pleiades, 17, 231, 245.
- (See Lost.)
- Plume, The, 19, 23, 24, 55.
- Pointers, 208.
- (See Dipper.)
- Poison, 222.
- Polariscope, 49.
- Polarization, 18.
- Polarizing Eye-piece, 14, 18.
- Polar Star, 230.
- (See Great Bear.)
- Polyp, 152.
- Pores, 24.
- Pouillet’s Invention, 93.
- Printing, indebtedness to the sun, 74.
- Prism, 63, 64.
- (See Colors, Scarlet.)
- Proctor’s Observations, 14, 59, 69, 87.
- Prospero’s Wand, 221.
- Ptolemy, 155, 161.
- Pyramids, 99, 117, 233, 234.
- (See Egypt.)
- Pyrheliometer, 93.
- Race, simile, 179.
- Radiant Energy, 71, 74;
- rate, 104.
- Radiation, 101, 108.
- Railway Explosion, 182, 183.
- Railway, The, 156.
- Rain, 111.
- Rainbow, 70.
- Ranyard’s Photographs, 50.
- Red Sea, 116.
- Reflection, 216.
- Repulsive Force, 215.
- Ribbons, 70, 236.
- Rifts, 163, 164.
- Rings, 123, 124, 152, 155.
- (See Saturn.)
- Rockets, 67, 68.
- Rocky Mountains, 88, 89, 180.
- Roman Boy, 34.
- Rope, 20, 26.
- Rose-leaf, 63, 70.
- (See Leaves.)
- Rowland’s Photographs, 237.
- Ruskin, quoted, 29.
- Russia, 134.
- Rutherfurd Photographs, 8, 9, 137, 143, 155, 234.
- Sal-ammoniac, 14, 25.
- Salisbury Plain, 1, 2.
- Sandstone, 192.
- Saturn, 118, 119, 121, 123, 124, 127–129, 136, 215.
- Saturnian Dwarfs, 223, 224.
- Saul, comparison, 77.
- Saxon Forefathers, 1, 2.
- (See Britain.)
- Scarlet, 67.
- (See Colors.)
- Schwabe, Hofrath, 76, 77, 87.
- Scott, Sir Walter, quoted, 92.
- Screen, 10, 35–37.
- Seas, lunar (q. v.), 143.
- Secchi, Father, 14, 15, 24, 25, 29, 30, 43, 59, 235.
- Segmentations, 30, 31.
- Self-luminosity, 215.
- Sextant, 224.
- Shadows. (See Lunar.)
- Shakspeare, quoted, 60, 220.
- Sheaves, 68.
- Shelbyville, 42, 43.
- Sherman, observations at, 88.
- Ship, comparison, 133.
- (See Steamer.)
- Shooting-stars, 35, 193, 196, 198, 199.
- (See Falling, Meteors.)
- Sicily, 50.
- (See Etna.)
- Siemens, Sir William, 111.
- Sierra Nevada, 151, 160, 180.
- Signal Service, 90.
- Silicon, 107.
- Sirius, 179, 222–224, 236–238.
- Slits, 59, 63, 64.
- Smoked Glass, 11.
- Snow-flakes, 19, 35.
- Snow-like Forms, 25.
- Sodium, 237.
- Solar Engine, 75, 109.
- Solar Light (q. v.), 13.
- Solar Physics, 4, 12, 14.
- (See Sun.)
- Solar System, 228, 229.
- South America (q. v.), 80.
- South Carolina, meteors, 194, 195.
- (See Charleston.)
- Southern Cross, 234.
- Space, 181, 211, 224, 227, 229.
- Spain, expedition, 44.
- Sparks, 107, 108.
- Spectra, 231, 237.
- Spectres, 54, 55.
- (See Brocken.)
- Spectroscope, 7, 50, 59, 61, 63, 64, 130, 176, 198, 219, 222, 233–235, 240.
- Spectrum, 65, 235.
- Spectrum Analysis, 12.
- Speculations, 193.
- Spinning-wheel, 115.
- Springfield Observations, 44.
- Spurs, 208, 212, 215.
- Star of Bethlehem, 229.
- (See Tycho.)
- Stars:
- new study, 3;
- location, 4;
- size, 4, 230;
- seen in darkness, 35;
- self-shining suns, 35, 118;
- host, 117;
- variety, 118;
- five, 118;
- elements, atmosphere, 179;
- showers (see Meteors), 195;
- seen through comet, 212, 215;
- chapter, 221–250;
- analysis, children, 222;
- distances, 223;
- intervals, 224, 227, 229;
- colors (q. v.), glory, 227;
- new, fading, 230;
- double, 233;
- relation to man (q. v.), 233;
- fixed, 233;
- changing place, 234;
- mass, 237;
- ages, 238;
- photographed, 244, 247;
- chart, 247;
- death, 248.
- (See Falling, Planets, Shooting.)
- Steam, 74, 75.
- Steamers, 21, 73, 115.
- Steel, melted, 104–108.
- (See Iron.)
- Stellar Spectra (q. v.), 222, 236, 237, 244, 245.
- Stevenson, George, 111.
- Stewart’s Observations, 88.
- Stonehenge, 1–3.
- Stones:
- from heaven, 175, 176, 186, 187, 191, 193;
- Iowa, 199, 200.
- (See Meteorites.)
- Stonyhurst Records, 88.
- Sumbawa Observations, 181.
- Sunbeams:
- lifting power, 72;
- Laputa, 73;
- printing, 74;
- motes, 215.
- (See Light.)
- Sun:
- practical observations in Washington, 2, 3;
- new study, 3;
- surroundings, 4, 35–69;
- distance, 4–6;
- size, 5, 6;
- a private, 6;
- views, 6–12, 15, 16, 20;
- details, 7;
- fire, 8, 91, 92;
- telescopic view, 8;
- axis, 9;
- revolutions, 10;
- surface, 17;
- paper record, 18;
- heat (q. v.) and eye, 19;
- drawings exaggerated, 29, 30;
- something brighter, 32;
- atmosphere, 33, 34;
- slits, 59;
- miniature, 64;
- flames (q. v.), 69;
- energy, 70–116 (see Heat);
- versatile aid, 74;
- children, 75, 222;
- shrinkage, 99;
- ground up, 100;
- emissive power, 104;
- constitution and appearance, 111;
- god, 116;
- self-shining, 118;
- studied from mountains, 167;
- affected by dust (q. v.), 185;
- and comet, 216;
- elements, 233;
- a star, 237;
- life, 238;
- candle, 249;
- anecdote, 250.
- (See Solar.)
- Sunrise, 234.
- Sunset, 181, 182.
- (See Twilight.)
- Suns:
- millions, 224;
- dwindling, 227;
- periods, 241.
- Sun-spots, 1–34 passim;
- ancient, 8;
- early observations, 8;
- changing, 9;
- great, 10, 20, 24;
- individuality, darker, 11;
- leaves (q. v.), 11, 12;
- how observed, 18, 19;
- typical, 21, 22;
- relative size, 20;
- hook-shaped (see Plume), 24;
- signs of chaos, 27;
- double, 32;
- weather, 76, 90;
- periodicity, 76–78;
- temperature, 83;
- records, 85;
- variations, 87;
- (1870), 9, 15, 16, 20;
- (1873), 20–24;
- (1875), 25, 28, 30;
- (1876), 30, 32;
- (1882), 80, 83–86, 90.
- Superga, 38.
- Swift, Dean, 73, 131, 132.
- (See Gulliver.)
- Sword Meteor (q. v.), 175.
- Tacchini’s Investigations, 43, 49, 62, 66, 68.
- Tail, 215, 216.
- (See Comets.)
- Tan, 71.
- Taylor, Bayard, 139.
- Telephone, 84, 89.
- Telescopes:
- many, 17;
- best, 134;
- alone, 227, 230;
- use, 233, 234.
- Temperature, 101, 102, 108;
- of space, 224, 227.
- Terminator, 147.
- Thermometer, 71, 93, 102;
- low, 160, 163.
- Time, small divisions, 241.
- Tippoo Saib, 221.
- Total Eclipse (q. v.), 39–48 passim, 55, 59.
- Trees, lacking, 168.
- Tribune, The New York, 84.
- Trinity Church, 72.
- Trocadéro, 112.
- Trouvelot, E. L., 119, 123, 225.
- Turin, 38.
- Twilight, small, 38.
- Tycho, 144, 229.
- (See Star.)
- Tyndall, 98.
- Umbra, 11, 12, 19, 20.
- United States, comparison, 24.
- Uranus, 3, 196.
- Vapor, 28.
- Vega, 235, 246.
- Vegetables, 74.
- Veils, 14, 17.
- Venus, 118.
- Vernier, 3.
- Vesuvius:
- crater, 155, 157;
- eruption, 181, 183.
- (See Naples.)
- Vibrations, 72.
- Victoria, 115.
- Viscous Fluid, 26.
- Vital Force, 14.
- Vogel, H. C., 64, 66.
- Voids, 181, 227.
- Volcanoes, 27, 28;
- in moon, 167, 193.
- Wandering Star, 101.
- (See Comets, Falling.)
- Washington:
- Observatory, 2, 86–88;
- telescope, 122;
- Monument, 182.
- Water, 152;
- in man, 221.
- Waterloo, 80.
- Water-wheel, 111.
- Watson’s Observations, 49.
- Wheat, prices, 79.
- (See Breadstuffs, Corn, Grain, Sun-spots.)
- Wheel, comparison, 10.
- Whirlpools, 28, 31.
- Whirlwinds, 23, 31.
- White Light (q. v.), 48, 62, 63.
- Whitney, Mount, 177.
- Willow-leaves (q. v.), 11, 12, 14.
- Wing, simile, 215.
- Winlock, Professor, 44.
- Withered Surfaces, 168, 171.
- Wood-engraving, 50.
- Worlds and Clouds, 249.
- Wrinkles, 172.
- Xeres, Spain (q. v.), 44, 53.
- Young, Professor:
- spectroscope, 44, 50, 65, 234;
- observations, 56, 59, 61, 68, 69;
- magnetism, 87, 88;
- radiation, 101.
- Zodiacal Light, 55.