INDEX.

Actinometer, J. Herschel’s, [152], [179], [180]
Adams, J. C., at Collingwood, [188]
Ages of heavenly bodies, [68], [94], [170]
Alexander, the Czar, [49]
Amici, of Modena, [148], [150]
Apertures, method of, [61], [63]
Apex, solar, [78], [80]
Archbishop of Canterbury, and George III., [38]
Argelander, [80], [106]
Asteroids, [46], [90–1], [95], [100]
Astrometer, J. Herschel’s, [177]
Astronomical Society, [49], [152], [188]
Aubert, Alexander, [16], [101], [124]
Babbage, companionship with J. Herschel, [143–4], [149], [152];
astatic needle, [208]
Bailey, S. I., [169], [170]
Baily, Francis, [164], [185], [186], [187]
Barnard, diameters of asteroids, [91];
nebulosities, [110–11];
photographs of Milky Way, [174]
Bates, Joah, anecdote of W. Herschel, [12]
Bath, centre of fashion, [12];
Herschel’s residences there, [17], [26], [47]
Beckedorff, Mrs., [126], [127], [160];
Miss, [138]
Bessel, solar movement, [80];
estimate of W. Herschel, [109];
Halley’s comet, [177];
at Collingwood, [187];
memoir of, [216]
Biot, estimate of J. Herschel, [201]
Bonaparte, Lucien, [33], [44]
Bonaparte, Napoleon, Herschel’s interview with, [47]
Bradley, observation of Castor, [76]
Brougham, Lord, [53], [88], [90], [207]
Burney, Dr., notices of W. Herschel, [12], [44], [45–6];
walk through forty-foot, [38];
notices of Caroline and J. Herschel, [125], [142]
Burney, Miss, meetings with W. Herschel, [38–9];
with Mrs. and Miss Herschel, [44], [124], [125], [127]
Burnham, double stars, [103];
planetary nebulæ, [155]
Campbell, Thomas, admiration for W. Herschel, [47–8];
notice of his son, [145]
Cavendish, anecdote of, [100]
Clay Hall, [36]
Climate, changes of, [82]
Comet, of October 1806, [48];
of 1811, [94];
Encke’s, [124], [175];
of 1819, [128–9];
Biela’s, [153];
Halley’s, [175–6], [180], [211]
Comets, decay of, [94];
Miss Herschel’s, [124], [125]
Common, Dr., five-foot reflector, [99]
Construction of the Heavens, [53], [60], [113–114], [214–15]
Dante and the “Divina Commedia,” [15]
Datchet, house at, [32], [36]
Dawes, sun-spot nuclei, [83]
De la Rue, photoheliograph, [210]
De Morgan, letter to Captain Smyth, [188–9];
Herschel and the coinage, [191];
friendship with, [197];
dislike to hexameters, [217]
Dreyer, Catalogue of Nebulæ, [192]
Easton, Milky Way structure, [106]
Edgeworth, Miss, at Slough and Collingwood, [192–3]
Feldhausen, [163], [180], [181]
Flamsteed, British Catalogue, [80], [123], [126]
Galileo, double-star method of parallaxes, [55]
Gauss, [151], [201], [205]
George III., patronage of Herschel, [10], [24], [28–9], [30], [32], [33];
taste for astronomy, [30], [47];
walk through great telescope, [38]
Gill, Dr., Herschel’s micrometers, [103];
photographic catalogue, [106];
photographs of Argo nebula, [167];
of Omega Centauri, [169]
Gordon, Lady, portrait of Sir J. Herschel, [202]
Gould, Dr., solar cluster, [107], [215]
Grahame, James, [149]
Gravitation, extension of to stellar systems, [77], [148]
Gregorian reflectors, [20], [29]
Griesbach, Mrs., [10], [116];
her sons, [10], [28], [29]
Halley, list of nebulæ, [19];
stellar motions, [77]
Hamilton, Sir W. R., communications with J. Herschel, [146], [152], [158], [173], [188];
speech by, [182];
at Collingwood, [193];
quaternions, [194–5]
Haydn, visit to Slough, [44]
Heat-rays in solar spectrum, [95–6]
Herschel, Alexander, assisted his brother, [13], [21], [27], [120];
accompanied him to Göttingen, [37];
supported by him, [51];
care for his sister, [118]
Herschel, Professor Alexander, meteoric researches, [201]
Herschel, Caroline, fetched to Bath, [15], [118];
help in speculum making, [15], [20], [124];
a singer, [21], [117], [119];
remarks, [25], [27], [34], [49];
letters from W. Herschel, [28], [29], [30], [129];
household cares, [32], [118], [121];
reminiscences, [35], [36], [37], [39], [48], [50], [68];
annuity, [51], [131];
birth and childhood, [115–16];
education, [115], [118], [121];
visits to London, [121], [127];
discoveries of nebulæ, [122];
of comets, [124–5], [139];
her brother’s assistant, [122–3], [125];
catalogues nebulæ, [123], [132];
Index to Flamsteed’s observations, [126];
royal attentions, [126], [127], [133], [135], [139];
anxiety about her brother’s health, [128–9];
return to Hanover, [130–1];
Gold Medals bestowed on, [132], [138];
joy in her nephew’s career, [134–5], [159];
his visits, [135–36], [159];
Recollections and Journals, [137], [138];
death, [139];
personality, [139–41];
anecdotes of J. Herschel’s childhood, [142];
his letters to her, [151], [152], [153], [162–3], [164], [175], [176], [187];
her portrait, [196];
her advice to him, [205]
Herschel, Dietrich, [20–1], [51], [127–8], [130], [131]
Herschel, Sir John, dismantling of great telescope, [43];
catalogues of nebulæ, [132], [155], [191–2];
visits to Hanover, [135–6], [151], [159–60], [184];
nebular observations, [136], [153], [154–7], [165–7];
Cape Expedition, [135], [159–2], [181–2];
birth and childhood, [142];
university career, [143–5];
medals awarded to, [145], [148], [149], [157], [187], [201];
work on double stars, [134], [146–48], [157];
method for computing orbits, [148–9];
general catalogue, [192];
ascents of Monte Rosa and Etna, [149–50];
explorations in Auvergne, [152];
experiments on solar radiation, [151–2], [179];
visit to Ireland, [152];
cometary observations, [153], [175–6], [180], [189];
telescopes, [153], [158], [164], [183];
discovery of star in Orion-trapezium, [158];
marriage, [159];
Feldhausen, [163], [180–1];
Cape climate, [164];
Magellanic Clouds, [165–6];
Argo nebula, [167];
Eta Argûs, [168–9];
globular clusters, [169–71], [213];
star-gauging, [171–2];
comets, [175–6];
stellar photometry, [177];
solar theory, [178–9], [211];
Saturnian satellites, [180];
magnetic work, [184], [189], [208];
constellational reform, [185];
removal to Collingwood, [186];
Cape Results, [186–7], [211–12];
President Astronomical Society, [188];
Master of the Mint, [190–1];
guests at Collingwood, [188], [193], [195];
sonnet, [194];
family life, [195–6];
death, [197];
powers and character, [198–201];
books, [205–8];
photographic experiments, [209–10];
nature of nebulæ, [212–14];
solar cluster, [215];
poetical performances, [216–18];
philosophy of discovery, [219]
Herschel, Colonel John, examination of nebular spectra, [201]
Herschel, Isaac, [9], [21], [115], [116]
Herschel, Jacob, [116], [117], [128]
Herschel, Lady, the elder, [44], [50], [152], [160]
Herschel, Lady, the younger, [159], [192], [194], [201]
Herschel, Sir William, birth, [9];
musical career, [10–16], [21], [26], [121];
telescope, making, [14–15], [17], [19], [20], [22];
thirty-foot, [26–8],
seven-foot, [28–9];
for sale, [33];
forty-foot, [34], [37], [38], [41–3], [49], [50], [100], [137], [210];
twenty-foot, [35–6], [40], [50];
front-view telescopes, [40], [41], [102], [153];
space-penetrating power of, [61], [98];
reviews of the heavens, [19], [20], [26], [35], [36], [42], [46];
early papers, [22–3];
discovery of Uranus, [24–5], [120];
observations of double stars, [26], [49], [55–6], [75];
interviews with the king, [28–30];
royal astronomer, [30], [32–3];
mode of observing, [30], [122];
discovery of Uranian satellites, [40], [93], [153];
of Saturnian satellites, [41], [43], [92];
marriage, [44];
aversion to poetry, [45–6];
interview with Bonaparte, [47];
observations of comets, [48], [94], [128–9];
failure of health, [49–50], [128–9];
death and character, [51];
construction of the heavens, [53–4], [60], [114];
star distances, [54–5], [57], [60–1], [64], [75];
star-gauging, [57–8], [113];
nature of the Milky Way, [57–9], [62–3];
chasms in, [68];
method of apertures, [61];
catalogues of nebulæ, [64];
varieties, [65];
island universes, [66–7], [72];
development, [67–8];
nebulous fluid, [69–70];
condensation into stars, [71–2], [109];
nebular distribution, [73];
discovery of binary stars, [76–7], [147];
transport of the solar system, [77], [80], [108];
stellar photometry, [80–2], [174–5];
theory of the sun, [83–6], [211];
sun spots and weather, [87–8];
observations of Venus, [88];
of Mars, [89];
of the asteroids, [90];
of Saturn, [91];
law of satellite-rotation, [92];
lunar volcanoes, [93];
detection of infra-red heat-rays, [95–7];
use of high powers, [101–2];
micrometers, [103];
photometric enumeration, [106];
solar cluster, [107–8];
diffused nebulosities, [110–11];
a founder of sidereal astronomy, [112]
Herschel, Sir William J., [49], [136], [183], [201]
Huggins, Dr., spectra of nebulæ, [109], [214];
of stars, [113]
Humboldt, [133], [138], [170], [184]
Huygens, improvement of telescopes, [17]
Jacob, southern Milky Way, [172]
Japetus, rotation of, [92]
Jupiter, trade wind theory of, [91];
rotation of satellites, [93]
Kapteyn, solar cluster, [107]
Knipping, Mrs., [137], [138]
Lacaille, southern nebulæ, [19]
Langley, bolometer, [95];
atmospheric absorption, [152], [179]
Laplace, [18], [47], [91], [201], [207]
Lassell, Uranian satellites, [93];
reflectors, [99];
observation of Mimas, [180]
Le Verrier, [187], [188]
Lexell, orbit of Uranus, [24]
Maclear, Sir Thomas, [162], [168], [176], [181]
Magellan, Von, accounts of William and Caroline Herschel, [40], [122]
Magellanic clouds, [165–6]
Magnitudes, stellar, [81], [104–5], [177]
Mars, analogy with the earth, [89]
Maskelyne, [25], [29], [76]
Mayer, Christian, satellite-stars, [75]
Mayer, Tobias, solar translation, [77], [78]
Michell, revolving stars, [75];
solar group, [107]
Micrometer, lamp, [24], [103];
wire, [56], [103]
Milky Way, rifts in, [50], [67–8], [173], [175], [215];
structure, [57–59], [62], [173–4], [214–15];
spectral peculiarity, [105];
distance, [106], [173], [214];
splendour in southern hemisphere, [172];
photographic portrayal, [174–5]
Miller, Dr., [11], [12]
Mitchell, Miss, visit to Collingwood, [195–6]
Monck, stellar spectroscopic distribution, [107]
Moon, mountains of, [22], [23];
volcanoes, [93–4].
Nasmyth, opinion of J. Herschel, [196–7];
solar willow leaves, [211]
Nebula, Orion, [15], [43], [65], [70], [71], [110], [111], [153], [167], [214];
Dumb-bell, [157];
Argo, [167];
Andromeda, [214]
Nebulæ, catalogues, [19], [64], [123], [132], [191–2];
discoveries, [35], [64], [122], [165];
nature, [66], [212–4];
development, [67], [69], [109–10];
distribution, [73], [214]
Nebulæ, annular, [65], [157], [165]
Nebulæ, double, [72], [156]
Nebulæ, planetary, [65], [67], [71];
spectrum, [109];
satellites to, [155];
colour, [165]
Nebulæ, rifted, [157]
Nebular theory, [71–2], [109]
Newton, law of gravitation, [17], [77];
reflectors, [20], [23];
mode of investigation, [23], [206]
Olbers, origin of asteroids, [90];
comet of 1819, [129];
light extinction, [174];
visit from J. Herschel, [184]
Orange, Prince of, enquiries at Slough, [39]
Papendick, Mrs., remarks on William and Caroline Herschel, [39], [44], [125]
Peacock, Dean, [143], [194], [203]
Photography, of stellar spectra, [104], [107];
of nebulæ, [110–11], [113], [166–7];
star charting by, [113], [172], [199];
of clusters, [169–70], [171];
of solar spectrum, [209];
of sun-spots, [210]
Photometric enumeration, [60], [106], [107], [114];
catalogues, [80]
Photometry, stellar, [81], [104], [177];
photographic, [105]
Piazzi, visit to Slough, [39], [150]
Pickering, E. C. and W. H., photographs of Orion nebula, [111]
Pouillet, solar radiation, [179]
Pritchard, Dr., [143], [192], [201], [204]
Proctor, star-drift, [108];
estimate of Sir J. Herschel, [199], [200];
correspondence with, [218]
Ranyard, A. C., changes in nebulæ, [168];
clusters, [213]
Roberts, Dr., photographs of nebulæ, [157], [165]
Rosse reflector, [99], [212]
Russell, H. C., photographs of Magellanic clouds, [166];
of Argo nebula, [167];
of Milky Way, [175]
Saturn, artificial, [30];
satellites, [41], [43], [91], [92], [180];
rings, [91–2]
Savary, stellar orbits, [148], [149]
Schröter, [34], [84], [88–9]
Secchi, [113], [211]
See, Dr., double nebulæ, [156]
Sirius, brilliancy, [42], [168];
standard star, [58], [61], [63], [80]
Slough, W. Herschel’s residence at, [36], [44];
birthplace of J. Herschel, [142]
Sniadecki, stay at Slough, [39]
Solar cluster, [107], [215]
Solar radiation, [151–2], [179]
Somerville, Mrs., [132]
South, Sir James, [146], [147], [149]
Spectrum analysis, [84], [204], [209]
Spencer, unity of sidereal system, [166]
Stanley, Dean, on J. Herschel, [199]
Star-clusters, [49], [59], [63], [67], [72], [169–71], [213]
Star-gauging, [57–8], [113], [171–2]
Stars, binary, [72], [156];
discovery, [76–7], [147];
orbits, [147–9]
Stars, double, observations of, [55–6], [103], [146–8], [157];
colours, [56], [112], [156];
nebular relations, [155]
Stars, distribution of, [58–9], [60], [73], [81], [106], [171–2]
Stars, movements of, [77], [107–8]
Stars, nebulous, [69], [70], [71]
Stars, spectra of, [83], [105]
Stars, spectroscopic binary, [104]
Stars, temporary, [66–7]
Stars, variable, [23], [81–2], [168–9]
Stokes, Sir G., fluorescence, [210]
Stone, Herschel’s assistant, [180]
Struve, W., [148], [158], [188]
Sun, translation, [77–80], [108];
vicissitudes, [82], [87], [88];
constitution, [83–6], [178–9], [211]
Sussex, Duke of, [158]
Telescopes, Improvement of, [17], [19], [20], [24–6], [33], [36], [98–100]
Uranus, discovery of, [24–5], [26], [120];
satellites, [40], [93], [153]
Watson, Sir W., [16], [22], [27], [30], [47], [124]
Watt, James, [47]
Whewell, Dr., unity of sidereal system, [76], [166];
friendship with J. Herschel, [145], [163], [191], [200];
tidal data, [181];
articles in Quarterly Review, [186], [205–6];
Geological Society, [189];
on optical enquiries, [203–4];
hexameters, [217]
Wolf, Dr. Max, photographs of nebulæ, [111];
of Milky Way, [175]
Wollaston, [145], [177]
Worlds, inhabited, [85], [86], [89], [147].

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