Recueil d'Observations de Zoologi et d'Anatomie Comparee, 232.
Relation Historique du Voyage aux Regions Equinoxiales, 113, 119, 123,
127, 130, 186, 206, 207, 220, 221, 225, 252, 292, 299, 300, 302, 305-307,
314, 315, 327, 329, 334, 336.
Tableau Physique des Regions Equinoxiales, 33, 230.
Vues des Cordilleres, 225, 230.
Humboldt, Wilhelm von, on the primitive seat of Hindoo civilization, 36;
sonnet, extract from, 154; on the gradual recognition by the human race of
the bond of humanity, 358, 359.
Humidity, 313, 332-335.
Hutton, Capt. Thomas, his paper on the snow-line of the Himalayas, 331, 332.
Huygens, polarization of light, 52; nebulous spots, 138.
Hygrometry, 332, 333; hygrometric wind-rose, 333.
Imagination, abuse of, by half-civilized nations, 37.
Imbert, his account of Chinese "fire-springs," 158.
Ionian school of natural philosophy, 65, 77, 84, 134.
Isogenic, isoclinical, isodynamic, etc. See Lines.
Jacquemont, Victor, his barometrical observations on the snow-line of the
Himalayas, 32, 231.
Jasper, its formation, 259-261.
Jessen on the gradual rise of the coast of Sweden, 295.
Jorullo, hornitos de, 230.
p 369
Justinian, conjectures on the physical causes of volcanic eruptions, 243.
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