Egoroff, 115.

Tearnley, 6.
Enrenberg, tribute to, 253.

Feeding experiments, 377.
Ehrenberg's publications, 253, 254.

Feilden, Captain, 290.
Eichwald, Prof. Von, 417.

Feldspars, optical examination of, 153.
Eider-down, vegetable, 344.

Fellows, 230.
Elassoma zonata, 293.

Ferment, a natural, 145.
Elbers, Mr. Alexander, 402.

Fermentation of fish-guano, 368.
Electric convection currents, 121.

Fernandez, Prof., 159, 161.
dust figures, 125.

Ferns and mosses, 328.
lamp, a new form of, 128. Fern-spores, 345.
light, 127.

Ferrari, 7.
lighting, 399.

Ferrel, 57, 74, 75.
multiplier, 122.

Ferrel's isobars, 68.
spark, 124

Fertilization, 327.
Electrical phenomena, 84.

of Gentiana Andrewsii, 348.
Electricity, 120.

Fertilizers, 366, 367.
Electro-actinometer, 115.

Field, 160.
thermometer, 53.

Fiji group, climate of, 85.
Electrolysis, 124.

survey of, 156.
Electromotors, 121.

Filaria hæmatica, 248.
Electroplating, new, 404.

Finger, 75.
Ellery, 2.

Finsch, Dr., 189.
Elliott, J., 82.

Fire-damp and air, 147.
H. W., 226.

to detect amount of, 150.
Ellis, J. B., 334.

Fischer, Prof., 329.
Embomma on the Congo, 201.

Fish, the northernmost, 290.
Emerton, 335.

commission, 226.
Engelmann, Dr. George, 333.

Fish-scrap, 368.
Engineering, 381.

as food, 379.
English Arctic Expedition, 191.

Fishes of the United States, 289.
missionary stations in Africa, Fitzgerald, 127.
201.

Flame sensitive to sound, 102.
Entomological commission, 224.

Flammarion, 8.
Entomologists, commission of, 275. Fleas, educated, 320.
Eozoic rocks of the Blue Ridge, 172. Flögel, 79.

west of the Missouri, 171. Flooding of the Sahara, 392.
Ephesus, discoveries at, 262.

Flora Brasiliensis, 325.
Equatorial calm-belt, 73.

Fluorescein instead of litmus, 143,
Equinox in 1865, 13.

Fluorescence of calycanthus, 340.
Erismann, 149.

Fodder, corn, 372.
Erman, Prof. George A., 417.

effect upon milk production, 375.
Ertborn, of Antwerp, 18.

Foetterle, Dr. Franz, 417.
Erythrophyll, 144.

Fonvielle and Secretan, 58.
Eskimos, migrations of the, 265.

Foraminifera, 247.
Espy, 76.

Forbes, 76.
Estheria californica, 307.

'S. A., 307.
Etard, 134.

Force equivalent to vis, 91.
Etheostomids, 292.

Forel, Dr., 56, 316.
Ethnography, 265.

Foreman, Dr., 263.
Ethnology, 263.

Forrest, Alexander, 204.
Europe, 196.

Forests and rainfall, 352.
archæology of, 259.

Förster, 31.
and Asia in the glacial period, Fossil floras, 177.
180.

Foster, Oswald, 53.
ethnology of, 266.

Four-meter standard, 91.
living and fossil oaks of, 339. Fourcroya, rapid growth of, 339.
philology of, 269.

Fourier, 70.
storm predictions in, 62.

Fox, Robert Were, 417.
Everett, Prof., 75.

Fraas, 366.
Evolution, 283.

Frankland, 97.
Expedition, north-polar, 235.

on water analysis, 133.
Explorations and researches, 275.

Franklin portrait experiment, 126.
private, 233.

Franks, Dr., 328.

Frantzius, Dr. Alex. von, 417.
F.

Frazer, Prof., 152, 230.
Fairley, 133.

Freeman, 70.
Family, the, 271.

Freezing mixture on the radiometer,
Farlow, Prof. W. G.,

110.
Farsky at Tabor, 69.

Frémy and Clémandot, 403.
Fat of the animal body, 374.

Dehérain, 366.
Fauth and Co., 30.

French Meteorological Association, 60.
Fautrat, 88, 352.

Ministry of Marine, 187.
Fawcett, 103.

Frey, 136.
Faxon, Walter, 278, 307.

Friction and velocity, 93.

Friedel and Crafts, 140.

Gladstone and Tribe, 137.
Fries, 329.

Glass from slag, 401.
Fritsch, K.,7

iridescent, 403.
Fritsche, 86.

Gledhill, 7.
Fritz, Prof., 79.

Gleitsmann, of North Carolina, 89.
Frölich, 66.

Glenard, 144.
Frost, effect of, on chlorophyl granules, Gnehm, 143.
341.

Godefroy, 79.
on evergreen leaves, 341. Godlewski, 340,
Fuchsin in wine, detection of, 148.

Gold, crystalline form of, 154.
Fuller, 122.

Golding Bird, Mr., 241.
Fungi, 329.

Goldsmith, E., 159, 161.
Furnaces compared, 396.

Goniometer, reflecting, 111.
Goodale, Prof. G. L., 334, 335.
Goode, 275.

Gordon, 127.
Gabb, Prof. W. M., 192.

Colonel, 203.
Galilee, Sea of, 197.

Gorringe, Lient.-Commander, 183, 186.
Galle on Neptune, 22.

Gossage, William, 417.
Gall-flies, two-winged, 320.

Gould, Dr. B. A., 3, 9, 184.
Gallium, crystallized, 13s.

Govi, 85, 111, 112.
spectrum of, 114.

Graber, Dr. V., 283.
Galton, Francis, 268.

Graham, 54.
Galvanic polarization, 124.

Grain, vitality of, 340.
Gammarus puteanus, 307.

Gramme machines, 122, 130.
Ganiu, 309.

Granite of Rockport, Mass., 155.
Garbe, 109.

Graphite, compressed, as a conductor,
Gardner, J. T., 228.

123.
Gariel, 113.

Grassi, of Milan, 87.
Garman, 278.

Grasses, poisonous, 343.
Garnets (New Haven, Conn.), 156.

Gratings on glass and metal, 119.
Garnett, 106.

Grattarola, 100.
Garrod, A, H., 297.

Graves, Rev. James, 344.
Gas of London, 146.

Gray, Captain David, 188.
wells of Pennsylvania, 147.

Prof. Asa, 211, 327, 333, 335, 338,
Gases, determining the density of, 132.

343.
in meteorites, 135.

Great Lakes, survey of the, 220.
refractive power of, 112.

Salt Lake, fluctuations of, 215.
Gassiot, J. P., 417.

Green, John C., 47.
Gatch and Pourquier, 248.

"Lieut.-Commander F. M., 183, 191.
Gaudin and Gramme, 127.

Greenland, 196.
Gelatin in water from the soil, 133.

and Norwegian sea, surface
Geleznow, 327.

temperature of, 189.
Generation, spontaneons, 244.

Greenleaf, R. W., 357.
Genth, Dr. F. A., 152, 155, 158, 160.

Griffin, John J., 417.
Gentiana Andrewsii, fertilization of, 34 Gripon, 126.
Geographical Society, 193, 194, 196, 198, Gromadski, 26.
201.

Gross, Dr., 261.
Geography, 191, 206.

Grote's (A. R.) check-list, 322.
Geology, 165.

Groth, Prof., 152.
agricultural, 353.

Grove, 109.
of Pennsylvania, 231.

Grubb, Howard, 28.
Georg-Marien Hütte, 401, 402.

Gruber, 8.
Gerard, W. R., 334.

Guano, analyses of, 367.
German coast, sailing directions for, 188. Guldberg and Mohí, 74, S2.
Hydrographic Office, 157.

Gulf of Mexico, 223.
potash salts, 368, 369.

Gun-cotton for time-siguals, 27.
Germany, chart of railroads in, 196.

Gundlach, E., 239.
Gernez, 104.

Günther, Dr., 294.
Gessi, 203.

Guthrie, 105.
Gibbon, Lieutenant, 193.

Guyana, 198.
Gibbs, George, 262, 269.

Gyidén, Dr., 11.
Gilbert, Dr. T.'H., 358, 362, 375.

H.
G. K., 53, 215.
Gildemeister, Dr., 264.

Haberlandt, 341, 366.
Gile, E., 204.

Haeckel, Prof., 246, 301.
Gill, David, 2, 15, 16.

Haga, 69, 107.
Prof. Theodore, 275, 276, 291, 297. Hagenbach, 122.
Gilliss, 2, 16.

Hailstones, formation of, 79.
Gillman, Henry, 234.

Hair, histology of, 240.
Glacial phenomena around Lake Ontario, Hall, Prof. Asaph, 1, 7, 18, 19, 20.
181.

R. F., 38.

C. E., 179, 230.
Gladstone, 147.

Hamberg, Prof., 70.

in Labrador, 181.

Hampe, 134.

| Hill, Dr. George W., 24, 69, 84, 334.
Hamy, 262.

Hind, 14, 25, 181.
Hance, Dr., 343.

Hinde, George J., 191.
Hann, 55, 60, 85, 87.

Hinds, Dr., 251.
Havnay, 157, 161, 162.

Hinrichs, Prof., 65.
Hansen's tables, correction to, 23.

Histology, 240.
Hanstein, 328.

Hitchcock, Prof., 263.
Harbor at the mouth of the Obi, 189. Hjorter, 54.
Harkloft, 297.

Hobsoni, Hurtado, and Co., 308.
Harkness, Dr., 334.

Hodgkinson, W.O., 204.
Harrington, Prof., 328.

Hoffmann, Captain, 185.
Hartford (Comm.) private observatory, 45. Hoffmeyer, 73.
Hartl, 87.

Hofmeister, Prof. Wilhelm, 325, 326, 418.
Hartlaub, Dr., 296.

Hohngren, 116.
Hartley, 104, 135.

Holden, Prof. Edward S., 1, 3.
Harvard College Observatory, Cambridge, Holetschek, 25.
Mass., 39.

Holle, 327.
Harz, 327.

Holub, Dr. E., 203.
Hasler, 95.

Holz machine, 131.
Hässelbarth, 363.

Holzhauer, Capt.-Lieutenant, 188.
Hastings, Dr., 13.

Homogone flowers, 345.
Hatchett, 159.

Hooker, Sir Joseph D., 211, 336.
Hatschek, 311.

Hoorweg, 69.
Haughton, Prof. Samuel, 56, 65.

Hopkins Observatory, Mass., 51.
Hawes, G. W., 163.

Hopkinson, Dr., 30, 130.
Hayden, Prof. F. V., 206, 213, 276.

Hoppe-Seyler, 285.
report of, 308.

Horn, G. 8., 318.
Hazen, H. A., 46.

Horses, digestive capacity of, 377.
Ileat a germicide. 242.

Hough, Dr. F. B., 88.
conducting of gases, 106.

Howgate, Captain, 58, 235, 236.
specitic of gases, 106.

Hubbard, H. G., 335.
spectra, 107.

Hudson River tunnel, 354.
1. Thermometry, 102.

Huggins, Dr., 26.
2. Expansion, 103.

Hugo, 26.
3. Change of state, 104.

Humbert, 306.
4. Radiation, 107.

Humphrey, H. C., 373.
Heathcare, Commander J. A., 417.

Humpidge, 146.
Heer, 177..

Hungarian archæology, 261.
Heeren, 143.

Hunt, Prof. T. Sterry, 162, 165, 171, 172,
Heiden, 355.

Hunter, 84.
Heinrich, 366.

Huxley, 275.
Heis, Prof. Edward, 34, 418.

Hyatt, Prof. A., 301, 344.
Helianthus tuberosus, 338.

Hydrogen, purification of, 132.
Heller, 322.

sulphide, manipulation of, 134.
Hellmann, Dr., 71, 78.

Hydrographic survey of the Obi, 190.
Helm, 283.

Hydrography, 183.
Helmholtz, 121, 124, 237, 238,

Hypocephalus, 318.
Hematin, pure, 146.

Hypsometry, 87.
Henneberg, Prof., 374.
Henneguy, 250.
Hennessey, 83.

Ice as an electrolyte, 124.
Henry, M. M., 10.

Illuminator, a new, 240.
Henry Mountains, Utah, 53.

Ilmenium, a new metal, 139,
Henshaw, H. W., 218, 276.

Index of refraction), 112.
Hepaticæ, 328.

India Meteorological Office, 57.
Herand and Bouillet, 187.

Report, 59.
Herbarium at Kew, 333.

Indian cyclones, the, S2.
Hermann, 139, 142.

Government, 187.
Herschel, Sir John, 2.

heads, cast of, 265.
William, 19,

Indium, spectrum of, 114.
Hertwig, Prof., 247, 301.

Induced sparks, experiments on, 125.
Hesehus, 106.

Induction coil, large, 124.
Hesse, 104.

Industrial statistics, 406.
Hessian fly, 309.

Information about fertilizers, 371.
Heterogone flowers, 345.

Insectivorous plants, 328.
Heterostyled, 345.

Insects, 308.
Heuglin, Theodor von, 419.

Instructions and tables from Blanford (In-
Heumann, 137.

dia Office), 68.
Hicks and Harkness, 168.

Instruments and observatories, 28.
Higgin, Thomas, 302.

Interference fringes, 118.
Higgs, 94.

of light, 117.
Highway across Peru, 194.

Invertebrates, 300.
Hildebrandsson, 72.

Iodine and aluminnm, 137.
llildebrandt, 345.

Iridescent glass, 403.