—,H. D. Rogers, characters of some recent, as bearing upon the dynamics of geology, xlv, 341.
—, —, undulatory character of, xlvii, 274.
—, —, on undulations of, a cause of flexure in rocks, xliii, 177; xlv, 341.
—, effects of, on the growth of wheat, ix, 208.
East and West Rock, N. Haven, Ct., geological structure of, vi, 44.
—, scenery of, vii, 1.
Eastman, R., improved rotary saw machine, v, 146.f
Eaton, A., alcohol, observations on, xvi, 173.
—, geology of the Highlands, N. York, v, 231.
—, — and meteorology west of the Rocky Mts., xxv, 351.
—, — along the Erie canal, viii, 358; ix, 355; xiii, 383.
—, —, coal formations of N. York, xix, 21.
—, — of northern states, notice of Index to, i, 69.
—, —, Cherty limerock, xxxvi, 61.
—, —, coal, anthracite, Washington Co., N. Y., xvi, 299.
—, — of Southampton Lead mine, i, 136.
—, —, diluvial deposits in N. York and elsewhere, xii, 17.
—, gravel near Troy, v, 22.
—, North American localities, showing equivalency of rocks on opposite sides of the Atlantic, xxxix, 149.
—, cardinal points instratiographicalgeology, xxi, 199.
—, geological equivalents, xxi, 132.
—, —, nomenclature of rocks, xiv, 145f, 359.
—, —, Prodromus, xvii, 63.
—, gold rock of the south is talcose slate, xviii, 50.
—, —, —, of Mexico equivalent to that of the Carolinas, xx, 124.
—, Boletus igniarius, analogous to animal substances, vi, 177.
—, Crotalus reliquus, xx, 122.f
—, gases and salts forming near Erie canal, xv, 233.
—, living antediluvial animals, xv, 233.
—, numberfivea favorite in nature, xvi, 172.
—, magnetic needles, improvement in manufacture of, xii, 14.
—, trilobites, xxii, 165.
—, notice of new edition of the Geological Text Book of, xxii 391.
—, remarks byD. Thomason the views of, on the coal formations of New York, xix, 326.
Ebullition by cold, apparatus for producing,R. Hare, xxxiii, 248.f
Echinus, seeZoology,Radiata.
Echo, in Virginia,C. G. Page, xxxvi, 174.
—, in N. York state,J. B. Church, xxxvi, 175.
— a means of determining the depth of a sea, not effectual,C. Bonnycastle, xxxviii, 160.
Eclipse,solar, Feb. 12, 1831, xxii, 189.
—, —, in 1834, observation on,L. Brant, xxvii, 386.
—, —, of May, 1836, observations on, xl, 29.
—, —, of Sept., 1838, observations on, xxxviii, 158, 163, 172, 174; xl, 29.
—, —, —, observations on,D. Olmsted, xxxv, 174.
—, —, ibid, micrometric measures,E. P. Mason, xxxv, 176.
—, —, of July, 1842, xlii, 175; xliii, 401; xliv, 211.
—, —, —, observations suggested by, xlii, 395.
Edinburgh, on the geology of Calton Hill, near,J. W. Webster, i, 230.f
—, freshwater limestone of Burdie House,S. Hibbert, xxviii, 365.
Edmondson, T., modification ofAmpère'srotating galvanic element, xxvi, 370.f
—, rotating armatures, xxvi, 205f; xxxii, 399.
Educationin Africa, ii, 343.
— —, in Egypt, xii, 389.
— in England, number of students at Cambridge and Oxford, xix, 195.
— in Europe, by schools of mutual instruction, iv, 199.
— —, in Austria, Vienna Polytechnic Institute, x, 379.
— —, in Belgium, at Brussels, vii, 382.
— —, in Denmark, xii, 189; xiii, 173; xvii, 394.
— —, —, at Copenhagen, x, 175.
— —, —, —, bequest for, ix, 183.
— —, —, —, deaf and dumb, xii, 197.
— —, in France, vii, 199; xii, 392.
— —, —, in Paris, free commercial school, x, 171.
— —, —, —,M. Cochin'smunificence, xvii, 394.
— —, —, at Caen, in prison, v, 382.
— —, —, at Lyons, xx, 174.
— —, —, at Marseilles, v, 191.
— —, in Germany or Prussia, viii, 185; xiii, 159; xx, 388.
— —, —, Halle University, xiv, 381.
— —, —, Berlin Rural School, ix, 187.
— —, —, at Munich, iv, 196.
— —, —, Wurtemberg university, viii, 183.
— —, in Greece, at Chios, iv, 196.
— —, in Holland or Netherlands, xviii, 182.
— —, —, at Maestricht, by mutual instruction, v, 386.
— —, in Hungary, xiii, 165.
— —, in Poland, at Warsaw, ix, 186.
— —, in Portugal, vii, 198; ix, 187.
— —, in Russia, v, 176; xx, 176.
— —, —, St. Petersburg Greek Seminary, vi, 387.
— —, —, endowment of schools by a princess, iv, 386.
— —, in Sweden, ix, 182.
— —, in Switzerland, vi, 391; vii, 381; xii, 191; xiii, 397.
— —, —, at Bâle, rural school, ix, 368.
— —, —, at Geneva, v, 179, 380; x, 383.
— in U. States, xx, 413.
— —, in New York, xv, 401; xxii, 415; xxv, 258; xxvii, 177; xxx, 389; xlix, 176.
— —, in Connecticut, N. Haven Gymnasium, xiii, 385.
—, different systems of,W. Maclure, ix, 160, 163.
—, mutual instruction schools in Europe, iv, 199.
—,M. Ordinaire'smethod, vii, 199, 383.
—, Owen's plan, ix, 383.
—, Owen's establishment, x, 165.
—, Pestalozzian system,W. Maclure, ix, 163; x, 145.
—, new method in Latin, v, 182.
— of the poor, iii, 379.
—, American Annals of,W. C. Woodbridge, xix, 174, 357.
— and government of boys, vii, 161.
—, original papers relating to a course of liberal, xv, 297.
Edwards, J., observations on spiders, xxi, 109.f
Edwardsite, new mineral, with an analysis,C. U. Shepard, xxxii, 162.
—, identical with monazite,G. Rose, xxxix, 249.
—, ibid,C. U. Shepard, xxxix, 251.
—, crystallization of, xxxiii, 202.f
Eggs, artificial incubation, ix, 196.
—, mode of blowing for preservation, xxi, 161.
—, means of preserving, v, 379.
—, Scotch method of preserving, xxvi, 188.
Egypt, notices of, xxviii, 23.f
—, notice of works in, iii, 378.
—, — the canal of Mahommaddie, xxviii, 27.
—, — the Nile, xxviii, 28.
—, — Mahomet Ali, xxviii, 30.
—, education in, xii, 389.
—, embalmed ibis, bat, &c. from,S. G. Morton, xli, 187.
—, statistics of, vi, 389.
—, position of Memphis in, xxxi, 373.
Egyptian crania, observations on,S. G. Morton, xlviii, 268.
Ehrenberg, C. G., on recent and fossil infusoria, xxxiii, 111; xxxv, 371f; xxxvii, 116.
—, ibid, American, distribution, extent and influence of, xliii, 393; xlvi, 297.f
—, —, —, in Virginia, xlvi, 300; xlviii, 201.
—, —, —, in New York, at West Point, xlvi, 303.
—, —, at Berlin, xlii, 388.
—, —, general results of researches on, xlvii, 208.
— andHemprich, journey in northern Africa, vii, 195.
Elaine from oils, new mode of obtaining,M. Pechet, ix, 189.
—, separation of, from oils, xiii, 186.
—, and stearine, vi, 377.
Elasticity, an experiment on, with wine-glasses, xxii, 190.f
Elaterite, or fossil caoutchouc, xl, 215.
Electrepeter,Clarke's, xxxiii, 224.f
—, new form of,C. G. Page, xxxiii, 377.f
—, magnetic and electrotome,C. G. Page, xxxv, 112.f
Electricamalgam,W. R. Johnson, xxv, 68.
— battery, i, 292.f
— brush,R. Hare, xxxii, 277.f
— currents along the muscles and nerves different, xix, 180.
— — in the nerves, on the hypothesis of,M. Matteucci, xlix, 387.
— —, course of, in electric discharges,W. R. Johnson, xxv, 58.
— —, effect of placing a candle between the poles,W. R. Johnson, xxv, 59.
— —, two or more over the same conductor without interference,S. F. B. Morse, xliv, 418.f
— — and sparks from magnets,J. Henry, xxii, 403.
— —, ponderable matter transported by, xii, 383.
— discharges, lateral,J. Henry, xxxiv, 16.f
— discriminator, (electroscope,)R. Hare, xxv, 136.f
— excitement in leather by friction, xxxvii, 197.
— —, peculiar case of, in a woman, xxxiii, 394; xl, 386.
— experiments, season favorable for,W. R. Johnson, xxv, 60.
— fish, on the coast of Cape Cod,D. H. Storer, xliv, 213.
— —, Gymnotus, xl, 386.
— fluids, the existence of two, opposed byR. Hare, vii, 103.f
— —, observations on,C. G. Page, xxxvi, 353.
— induction, decomposition of water by,M. Hachette, xxiv, 142.
— —, currents of electricity from, of different orders,J. Henry, xxxviii, 232.f
— —, polarity produced by, xxxviii, 3.
— —,R. Hare, letters on, toM. Faraday, xxxviii, 1, 19; xli, 1.
— —,M. Faraday, in reply toR. Hare, xxxix, 108; xlii, 291.
— jar, on the discharge of, xxxviii, 6.
— kite, for determining the electricity of the upper currents of the air,J. Swaim, xxxii, 304.f
— lady, explanation of, xxxiii, 394; xl, 386.
— light, a mode of producing, viii, 380.
— machine, form and arrangement of,W. R. Johnson, xxv, 66.
— —, plate, viii, 378.
— —, —,R. Hare, vii, 108f; xxxii, 272.f
— —, communication of, with the earth not necessary,R. Hare, xxiv, 253.
— pile, theory of, xix, 375.
— shock from a cat, mode of receiving, viii, 391.
— sound, xlix, 390.
— spark,W. R. Johnson, xxv, 57.
— —, length of, as affected by the size of the balls,W. R. Johnson, xxv, 60.
— —, perforations by, in a quire of paper or card,W. R. Johnson, xxv, 64.
— —, —, ibid,C. G. Page, xxxvi, 353.
— — drawn from a heated stove, xl, 385, 386.
— —, remarks on the so-called positive and negative,R. Hare, xxxii, 275.f
— —,Wheatstone'sexperiment to determine whether there is a sensible duration to, xxviii, 60.
— —, from magnets,J. Henry, xxii, 403.
— —, —,J. P. Emmet, xxiv, 78.f
— syringe,C. G. Page, xxvi, 110.f
Electricity.
—, animal, mode of receiving a shock from a cat, viii, 391.
—, —, peculiar case in a woman, xxxiii, 394; xl, 386.
—, —, of fish on the coast of Cape Cod,D. H. Storer, xliv, 213.
—, —,Matteuccion, xxi,157.
—, —, observations on,LinariandMatteucci, xxxii, 198; xlix, 388.
—, atmospheric, water decomposed by, xx, 179; xxi, 368.
—, —, observations on,M. Matteucci, xxx, 376.
—, blasting by means of, xvi, 372.f
—, capillary attraction influenced by,J. W. Draper, xxvi, 399.
—, —, — productive of, ix, 193.
—, conducting power of liquid gases, xxi, 374.
—, —, — of the metals, xii, 199.
—, —, — of steam, xxvii, 206.
—, —, — of the solar rays, xvii, 391.
—, the conductibility of, by liquids, increased by adding water, xvii, 165.
—, by contact,Karsten, xxxi, 159.
—, decomposition of water by atmospheric and common, xxi, 368.
—, discharge, lateral,J. Henry, xxxiv, 16.f
—, effects of, on vegetation,M. Baric, xxxi, 160.
—, fluids of, one or two,R. Hare, vii, 103.f
—, —, ibid,C. G. Page, xxxvi, 353.
—, generation of, by the electrical machine,G. W. Rains, xlix, 93.f
—, evaporation in gilding, producing, v, 198.
—, induced currents of different orders produced by,J. Henry, xxxviii, 232.f
—, influence of, on the process of beer making, xxxiv, 8.
—, —, on capillary attraction, xxvi, 399.
—, —, on odors, xv, 394.
—, —, on phosphorescence,T. J. Pearsall, xxi, 378.
—, light acting on an iodized plate, producing, xlvii, 190.
—, machinery producing,A. Smith, xxxix, 134.
—, medical,J. Hall, iii, 166.
—, motion producing and motion produced by,J. Locke, xxxiv, 130.
—, needle deflected by, xii, 199.
—, of peroxide of manganese, xxx, 179.
—, ponderable substances transferred by,A. Fusinieri, xxii, 355.
—, principles of, in 1833,A. de la Rive, xxvi, 175.
— produced by the action of light on an iodized silver plate, xlvii, 190.
— — by machinery,A. Smith, xxxix, 134.
— — by a separation of parts, or fracture, viii, 379.
— from steam, xl, 382.
— of the tourmaline, xvi, 390.
— retained in a vacuum, xxix, 354.
—, science of, in 1833,A. de la Rive, xxvi, 175.
—, theory of,J. D. Whelpley, xlviii, 364.
—, —,Van Marumon, iii, 385.
— and magnetism, connection between, iii, 386.f
—, heat and magnetism, on the connection of,J. F. Dana, vi, 163.f
—, thermo-, seeThermo-Electricity.
—, Galvanic battery,E. de Butts, viii, 271.f
— — of carbon, xxxix, 132.
— — —,B. Silliman, Jr., xliii, 393; xliv, 180.f
— —,Crosse's, some account of, xxxii, 372.
— —,De la Rive's, v, 395.
— —, dry, xii, 195; xvii, 162.
— —,Grove's, xxxviii, 116.
— —, —, experiments with,S. F. B. Morse, xlv, 390.f
— —,R. Hare'snew modifications of, iii, 105.f
— —, —, calorimotor, i, 413; v, 94, 357, 364; vi, 337; xxxii, 284.f
— —, —, deflagrator, iii, 105f; iv, 201; v, 94; vi, 337; vii, 347f; viii, 99; ix, 181; xl, 48.
— —, — —, improved form of,M. Faraday, xxxii, 170.
— —, —, combining the advantages of the trough of Cruikshank with the deflagrator, xxxii, 285.f
— —, of great power,F. W. de Moleyns, xliv, 357.
— —,J. Henry, on a spark from a long conductor uniting the poles of, xxviii, 327.
— —, —, action of a spiral conductor, xxviii, 329.
— —,C. G. Page, on iron or any metal a substitute for copper, xxxii, 197.
— —, —, on the benefit of fresh immersion, xxxvi, 137.f
— —,W. B.andH. D. Rogers, experimental enquiry into some of the laws of, xxvii, 39.f
— —, —, relative influences of the zinc and copper, xxvii, 41.
— —, —, examination ofRitchie'slaw of surface, xxvii, 53.
— —, —, influence of temperature, xxvii, 57.
— —,J. B. RogersandJ. Green, ibid, xxviii, 33.
— —, —, relative importance of the zinc and copper, xxviii, 34.
— —, —, relative distance of the plates, xxviii, 39.
— —, —, deflecting power from different menstrua, xxviii, 40.
— —,W. Sturgeon, difference in the effects of the two polar wires, xxxix, 31.f
— —,Watkins'dry, xvii, 162.
— blasting,R. Hare, xxi, 139; xxvi, 352f; xxxviii, 188.
— —,H. K. G. Morgan, xxxviii, 33.
— calorimotor,Hare's, i, 413f; v, 94, 357, 364; vi, 337; xxxii, 284.f
— —, for galvano-ignition apparatus,R. Hare, xxxii, 284.f
— circle, theory of,T. Graham, xxxviii, 117.
— currents, caloric a cause of,J. P. Emmet, xxv, 269.
— —, remarks on, xviii, 199.f
— —, and sparks from the horse-shoe magnet,J. P. Emmet, xxiv, 78.f
— deflagrator,Hare's, iii, 105f; iv, 201; v, 94; vi, 337; vii, 347f; viii, 99; ix, 181; xl, 48.
— —, improved form of,M. Faraday, xxxii, 170.
— experiments byA. Crosse, producing crystals, and, as supposed, insects, xxxv, 125.f
— —, byR. Hare, viii, 145.
— —, with grasshopper's legs,J. W. Bailey, xxxi, 292.f
— ignition of gunpowder,R. Hare, xxxvii, 269.
— induction,J. P. Emmet, xxvi, 23.f
— lamp, an improvement in, byDr. J. Cutbush, ii, 332.
— light, transmission of, through metals of different conducting powers,J. Thomas, xxxiv, 205.f
— —, daguerrotype experiment by,B. Silliman, Jr.andW. H. Goode, xliii, 185.
— multiplier, seeGalvanometer.
— music, production of,C. G. Page, xxxii, 396; xxxiii, 118.
— phenomenon, attending the soldering of water pipes in N. York city, xvii, 194.
— protection by the contact of heterogeneous metals, xvi, 263.
— trough,Watkins's, xvi, 215.
Galvanism, anthracite a conductor of, v, 200.
—, charcoal fused by, v, 108, 361; viii, 147, 288; xxxviii, 190.
—, — —,L. Vanuxem'sexamination of, viii, 292.
—, on colors supposed to be transferred by, through animal substances,A. Jones, xxi, 316.
—,A. Crosse'sexperiments in, seeCrosse.
—, crystallization of metals by,G. Bird, xxxiii, 267.
—, —,M. Becquerel, xvii, 383.
—, crystals and insects,A. Crosse, xxxv, 125.f
—, engravings copied by,von Kobell, xlviii, 221.f
—, engravings and medals by,T. Spencer, xl, 157.f
—, fossils copied by, xlii, 327.
—, gilding by, xli, 402.
—, insects supposed to be produced by, xxxii, 374f; xxxiii, 272; xxxv, 125f; xlix, 227.
—, —, —,W. H. Weekes, xliii, 395.
—, grasshopper's legs, a substitute for frogs,J. W. Bailey, xxxi, 292.f
—, insulation of wires, a mode of, proposed,A. A. Hayes, xx, 409.
—, metals precipitated by, structure of,W. de la Rue, xlix, 390.
—, minerals changed by,R. W. Fox, xxxi, 373.
—, results from heat of, and decomposition,W. Sturgeon, xxxix, 29.
—, shocks from the calorimotor, how increased,C. G. Page, xxxi, 137.f
—, size of plates, influence of, in, xxvii, 189.
—, theory of,Prof. Pfaff, xix, 178.
—, theory of,R. Hare, i, 413.f
—, theory of,Schönbein, xxxviii, 119.
Galvanography,von Kobell, xlviii, 221.f
—,T. Spencer, xl, 157.f
—, fossils copied by, xlii, 327.
Galvano-ignition apparatus,R. Hare, xxxii, 282.f
Galvanometer,R. Hare'simproved, xxvi, 359.f
—, —, rotary multiplier, xxxviii, 339.f
—,J. Henry, on the application of, to electro-magnetic apparatus, xix, 400.f
—,J. Locke, notice of a new, xxvi, 103f, 378.f
—, —, large thermoscopic, xxxiii, 365.
—,J. P. Emmet's, new form of, xxvi, 311.
—,C. G. Page, on the use of, xxxii, 354.f
—, —, astatic or rotary, xxxiii, 376.f
—, —, axial, xlix, 136.f
—, —, circular, xxxv, 259.f
—, modified,W. B.andH. D. Rogers, xxvii, 39.f
Galvanoscope, a means of detecting the failure of water in steam boilers by,C. G. Page, xxxvi, 141.f
Galvano-magnetic condenser, v, 394.
— - —, apparatus,J. F. Dana, vi, 330.f
— - —, —, Italian, v, 388.
Electro-chemical action,G. D. Botto, xxiv, 197; xxix, 369.
— - —, odor,ozonethe cause of,Schönbein, xli, 43.
Electro-dynamicinduction of coils,J. B. Zabriskie, xxxii, 308.f
— - —, —, various experiments in, and principles deduced,J. Henry, xxxviii, 170, 209.f
— - —, —, observations on,J. Henry, xli, 117.f
— - —, —, two kinds of,J. Henry, xli, 129.f
— - —, —, theoretical considerations,J. Henry, xli, 135.f
Electro-magnet,Henry'slarge, xix, 408.f
— - —, made for the Laboratory of Yale College, xx, 200.
— - —, a variety of, proposed,J. Humbert, xxxviii, 205.
— - —,Mr. Ganby's, xxix, 354.
— - —,C. G. Page's, xxxv, 253.f
— - —, see farther underElectro-magneticapparatus.
Electro-magneticapparatus,J. H. Abbot, xl, 104.f
— - — —,P. Barlow, v, 396.f
— - — —,A. W. Campbell'sengine, xxxv, 343.
— - — —,E. M. Clarke, (magneto-electric) xxxiii, 213f;
–electrepeter, xxxiii, 224.f
— - — —, —, modes of experimenting with, in decomposing water, xxxiii, 217.f
— - — —, —, mode of giving shocks, xxxiii, 216.f
— - — —, —, mode of scintillating iron wire, xxxiii, 219.f
— - — —, —, mode of adjusting the intensity armature, xxxiii, 218.f
— - — —, —, rotation by magnetic electricity, xxxiii, 221.f
— - — —, —, mode of igniting charcoal, xxxiii, 222.f
— - — —,T. Davenport, xxxii, Append. after 216; xxxiii, 193.
— - — —, —, rotary, xxxii, 216f, App., and 399.
— - — —,T. Edmonson, modification of Ampère's rotating, xxvi, 370.f
— - — —, —, rotating armature, xxvi, 205f; xxxii, 399.
— - — —,J. Henry'sapplication of a galvanic multiplier, xix, 400.f
— - — —,J. B. Joslin, xxi, 86.f
— - — —,J. Locke, and on magneto-electricity, xxxiv, 125.f
— - — —,B. R. McConnell'srotating, xxxiii, 188.
— - — —,C. G. Page, xxxiii, 191f; xxxiv, 364; xlix, 131.f
— - — —, —, double axial reciprocating engine, xlix, 139.f
— - — —, —, with revolving armature, xxxvi, 350.f
— - — —, —,C. G. Page, compound electro-magnet, xxxv, 253.f
— - — —, —, electrotome, xxxv, 112f, 253.f
— - — —, —, reciprocating armature engine, xxxv, 263.f
— - — —, —, with vibrating armature, xxxv, 267.f
— - — —, —, circular galvanometers, xxxv, 259f;
–with double helix for inducing magnetism, xxxv, 261.f
— - — —, —, electrepeter, new form of, xxxiii, 377f; xxxv, 112.f
— - — —,W. H. Pepys, vii, 195.
— - — —,M. Pixii, xxiv, 144, 146f, 196.
— - — —,J. B. Zabriskie, model of engine, xxxii, 313.f
— - — —, —, rotating, xxxvi, 129.f
— - — currents,A. de la Rive, xxxiv, 6.
— - — disc ofArago, xxiv, 143.
— - — induction, seeElectro-dynamic.
— - — and magneto-electric formula, xxxv, 356.f
— - — properties of metalliferous veins,R. W. Fox, xx, 136.
— - — telegraph,S. F. B. Morse's, xxxiii, 185.f
— - — —, see farther,Magneto-electric.
Electro-magnetism, early experiments in, iii, 383; v, 391.
— - —, experiments in,J. H. Abbot, xl, 104.f
— - —,J. P. Emmet'sdiscoveries (magneto-electric) in, xxiv, 78f; xxvi, 311; xxviii, 331.
— - —, —, on the cause of voltaic currents in, xxvi, 23.f
— - —,R. Hare'sexperiments, viii, 145.
— - —,R. Hare'sexperiments, in confirmation ofHenry's, xx, 143.
— - —,M. Jacobion, as a moving power, xl, 339.
— - —, —, ibid, laws of, xl, 340.
— - —,G. Moll'sexperiments in, xix, 329.
— - —, — experiments to determine how far galvanic surfaces could be diminished and retain magnetic power, xxvi, 177.
— - —,C. G. Page'sexperiments on the application of, as a moving power, xxxiii, 118, 190f; xxxv, 106.
— - —,M. Pixii'sexperiments in, xxiv, 144, 146f, 196.
— - —,J. B. Zabriskie, on the induction of metallic coils, xxxii, 308.f
Electrometers, iii, 372.
Electrometer, single leaf,R. Hare, vii, 351f; viii, 99; xxv, 136.f
Electromotors,S. Dal Negro, xxvii, 189.
—, new property of elementary,S. Dal Negro, xxv, 193.
Electrography, gilding by, xli, 402.
—,v. Kobellon, xlix, 221.
Electroscope,R. Hare, xxv, 136.f
Electrotome,C. G. Page, xxxv, 112f, 253.f
Electrotype, account of,T. Spencer, xl, 157.f
Elephant, death of, iv, 393.
— of Siberia, xxvii, 353.
—, fossil, near Bloomfield, Ohio, xxv, 256.
—, —, Jackson Co., Ohio, xxxiv, 358f, 363.f
—, — remains, Irondiquot Creek, xxxii, 377.
— bones and Mylodon (?) from Oregon,H. C. Perkins, xlii, 136.f
— —, from near Beering's Straits, xvi, 382.
— tooth, from near the shores of Lake Erie, xiv, 31.
Elevationabove the ocean of some heights in Ohio, Michigan, Pennsylvania and New York,C.Whittlesey, xlv, 12.
— — ibid in western New York and of Lake Erie,C. Dewey, xxxiii, 122.
— — — in Wisconsin,I. A. Lapham, xlvi, 258.
Elevation,Hopkins'theoretical views respecting the geological phenomena of, xxxi, 365.
—,G. E. Hayes, on the effects of the ocean in western New York, during, xxxv, 86.
—,W. W. Matheron causes of, in rise of sedimentary rocks of United States, xlix, 284.
—,H. D.andW. B. Rogers, theory of, xliv, 360.
— of Ceylon, evidence of, vi, 194.
— of the coast of Chili, xxviii, 236; xxx, 110.
— — — and South America,C. Darwin, xxxiii, 100.
— of the banks of the Mississippi, 1811,F. C. Usher, xxxi, 294.f
— of Sweden,C. Lyell, xxviii, 72, 387; xxix, 363.
— of the Scandinavian coast,L. Beamish, xlvii, 184.
— of Dominica, St. Christopher's, St. Eustatia and Saba, West Indies, indicated by raised coral reefs, iv, 218.
Elizabeth Islands, vii, 240.f
Elk of Ireland, iv, 246.
—, fossil bones of, in North Carolina, xxvii, 170.
Ellet, W. H., on the compounds of cyanogen, xviii, 329.
Ellipses, mode of drawing,S. De Witt, xxiv, 369.f
—, on the rectification of,C. Wilder, xviii, 38.f
Elliptic motion,T. Strong, xxx, 248.
Elm-tree moth, parasite of the eggs of, xxxviii, 385.
—, destruction of the eggs of, by a parasite,E. C. Herrick, xl, 211.
Embalming, remarks on the mode of, xii, 183.
—,J. N. Gannal'snew process, xl, 194.
Emerald in Africa, ii, 354.
Emerson, G. B., biographical notice of A. P. De Candolle, xlii, 217.
Emery of Saxony, xxiv, 377.
Emmet, J. P., on formic acid, xxxii, 140.
—, ammoniacal salts, solvent and oxydating powers of, xviii, 255.
—, iodide of potassium a test for arsenic, xviii, 58.
—, electro-magnetism and thermo-electricity, xxvi, 311.
—, —, new discoveries in, xxiv, 78.f
—, —, cause of currents in, xxvi, 23.f
—, solidification of raw gypsum, xxiii, 209.
—, a mode of producing sparks and galvanic currents from the horse-shoe magnet, xxiv, 78.f
Emmonite, supposed new mineral,T. Thomson, xxxi, 171.
Emmons, E., birds of spring, time of appearance in Williamstown, Mass., 1831-33, xxvi, 208.
—, circulation in vegetables, xxvi, 99.
—, granitic veins and beds of Chester, Mass., viii, 250.
—, Grevilleanum serratum, a new species of moss, xi, 183.f
—, metamorphic changes by artificial heat, in sandstone, xlv, 146.
—, rainmarks in the Potsdam sandstone, xlv, 316.
—, strontianite in the U. States, xxvii, 182.
Enamel for porcelain, v, 189.
Enamelled cast iron vessels in Bohemia, xlix, 400.
Encroachment of the sea, near New York,W. W. Mather, xxxvi, 16.
Endogenites, vii, 179.
Enfield's Natural Philosophy, review of, iii, 125.
England, population of, xxiv, 211.
Engelmann, G., Braun's monography of N. American Equiseta, with additions, xlvi, 81.
—, Braun's Charæ of N. America, xlvi, 92.
—, catalogue of a collection of plants in Illinois and Missouri, xlvi, 94.
—, monograph of the N. American Cuscutineæ, xliii, 333f; xlv, 73.
—, a mode of cupellation, xlii, 394.
Engine, explosive, ofS. Morey, account of, xi, 104.
—, steam, seeSteam engine.
English lexicography, contributions to,J. W. Gibbs, xxxiii, 324; xli, 28, 32; xlv, 96.
Engraving, a mode of enlarging, ii, 342.
—, a mode of biting-in, on steel, x, 194.
—, intaille douce, iv, 192.
— on steel,Perkins'sinvention, iii, 353.
Epicycloid, on the,E. F. Johnson, xxi, 280.f
Epidemics, in Paris, during past years, xxv, 197.
Epidote of Franconia, N. H., account of,C. U. Shepard, xviii, 129.f
—, crystals from Haddam, Ct., xlvi, 380.f
—, localities of, in Canada, viii, 62.
—, —, in N. Carolina, v, 262.
—, —, in Connecticut, i, 354; ii, 240; vi, 223; viii, 258; xii, 170; xviii, 361.
—, —, in Delaware, xiv, 11.
—, —, Massachusetts, i, 114; iii, 364; vi, 223; vii, 253; viii, 235; ix, 43.
—, —, New Hampshire, ii, 241; vi, 245; viii, 235; xviii, 129.
—, —, in New Jersey, v, 243.
—, —, in New York, ii, 241; iv, 47; vii, 58; ix, 41.
—, —, in Pennsylvania, viii, 238; xiv, 6.
—, —, in Rhode Island, iv, 285; x, 10.
—, —, in Vermont, vii, 58; xvii, 354.
Epistilbite and Heulandite, identity of, xiii, 185.
Equations, differential of the second order, integration of,T. Strong, xlii, 273.
— of the fourth degree, on the resolution of, xviii, 276.
— of the third and fourth degree, method of resolving,A. C. Twining, ix, 86.
Equilibrium between living and dead forces, condition of,R. H. Fauntleroy, xlvii, 241.f
Equinoxes, precession of, vii, 323f; viii, 132, 139.f
Equiseta, N. American,A. Braun'smonograph, with additions byG. Engelmann, xlvi, 81.
Equisetum arvense, xlvi, 83.
— boreale, xlvi, 90.
— eburneum, xlvi, 84.
— giganteum, xlvi, 91.
— hyemale, xlvi, 89.
— lævigatum, xlvi, 87.
— limosum, xlvi, 86.
— palustre, xlvi, 85.
— pratense, xlvi, 85.
— robustum, xlvi, 88.
— scirpoides, xlvi, 91.
— sylvaticum, xlvi, 84.
— variegatum, xlvi, 90.
Equivalents, chemical,Wollaston'sscale of, xvi, 371.
—, —, —, improved,L. C. BeckandJ. Henry, xiv, 202.
—, —, circular scale of,J. Finch, xviii, 196.
Eremite, a new mineral,C. U. Shepard, xxxii, 341.f
—, crystallographic examination of,J. D. Dana, xxxiii, 70.f
—, identical with monazite,J. D. Dana, xlv, 402.f
Ergot of rye,W. Tully, M. D., ii, 45.
—, remarks on, xii, 398.
—, on the origin of,M. Field, ix, 359.
Erie canal, tolls on, x, 398.
Erratic blocks, over the northern parts of England,Prof. Phillips, xxxi, 360.
— —, ibid,R. I. Murchison, xxxi, 375.
— — and glaciers in Switzerland,Agassiz, xli, 59, 190.
— — of the North of Germany, xxviii, 389.
— —, large, in Invernesshire, vi, 158.
— — and diluvial scratches, in the U. States, xli, 174.
— — in New England, their positions attributed to a retiring ocean, ix, 28.
— — in Rhode Island,C. T. Jackson, xl, 184.
— — in Maine,C. T. Jackson, xxxvi, 152.
— — in the Connecticut valley, vi, 85.
— — in western New York, xxxvi, 39.
— — in New York, about the sources of the Hudson and to the southward, xxxiii, 304, 315.
— — on Long Island, xxxvi, 20.
— — of Labrador feldspar, near Pompton, New Jersey, v, 241.
— — of Ohio,D.andI. A. Lapham, xxii, 300.
— —, in the valley of the Muskingum, xxix, 11.
— — in Illinois, xxxiv, 141.
— — in Indiana,J. T. Plummer, xliv, 296f, 303.
— — of gneiss and granite on the Côteau des Prairies,G. Catlin, xxxviii, 142.
— — of the Canadian lakes and valley of the St. Lawrence,C. Lyell, xlvi, 314.
— — the origin of, remarks on,P. Dobson, x, 217.
— —Murchison'scitation ofDobson'sviews on, xliii, 200.
— — transported by ice, in the polar current,W. C. Redfield, xxxii, 351.
— — on the supposed transportation of,J. E. DeKay, xiii, 348.
— — buoyancy of, at great depths, xxviii, 111.
— — gravel, &c., remarks on,Sedgwick, xxxiii, 287.
— — theory of,B. Struder, xxxvi, 325.
— glacial theory ofAgassiz, xlii, 352.f
— see farther underDriftandScratches.
Erythronium, supposed new metal, xx, 386.
Esophagotomy, iv, 383.
Espy, J. P., views on storms, xxxix, 120; xl, 327.
—, — —, notice of, byA. D. Bache, xxxv, 280.
—, on the causes of the daily fluctuations of the barometer, xli, 42.
—, meteorological enterprise of, xliv, 212.
Esquimaux Indians, remarks on, xvi, 145.
Essential oils, reaction of, with sulphurous acid,R. Hare, xxxi, 281.
Essex county, (N. Y.) mountains of, and the sources of the Hudson,W. C. Redfield, xxxiii, 301.f
Etching glass with fluor spar, vi, 354.f
Etna, ascent of,S. L. Johnson, xxvi, 1.
—, crater of, xxvi, 7.
—, earthquakes in 1823, ix, 216.
—, observations on,E. de Beaumont, xxxi, 168.
—, luminous flames at, xxxi, 169.
—, geological structure of,F. Ferrara, viii, 201.
Etherin space, idea of, when introduced, xxxiii, 1.
— —, resistance to motion of heavenly bodies, xvii, 389.
— —, examination of the theory of,R. W. Haskins, xxxiii, 1.
—, boracic, xlviii, 189.
—, chloric, new mode of obtaining,S. Guthrie, xxi, 64.
—, hydriodic,M. Serullas, xviii, 161.
—, hyponitrous,R. Hare, xxxv, 329.
—, nitrous, new process for,R. Hare, ii, 326.
—, nitric, process for,R. Hare, xxxiii, 241.f
—, œnanthic, xxxii, 381.
—, perchloric,C. HareandM. H. Boyé, xl, 50, 382; xlii, 63.
—, silicic, xlix, 192.
—, sulpho-cyanic, xvii, 377.
—, sulphuric, on the manufacture of, xxii, 199.
—, sulphurous,R. Hare, xxxi, 275.
—, —, and sulphate of etherine,R. Hare, xxxi, 275.
—, vaporization of, vi, 396.
—, action of, on sulphate of indigo, xxiv, 371.
—, odor of wines due to a peculiar, xxxii, 381 (œnanthic ether.)
Ethers of the vegetable acids, method of preparing, xlvii, 197.
—, and benzoic compounds, formulas for,WöhlerandLiebig, xxvi, 285.
Etherine, sulphate of,R. Hare, xxxi, 275.
—, sulphate of, on the destructive distillation of,C. Hare, xxxvi, 76.
Ethule, perchlorate of the oxide of,C. HareandM. H. Boyé, xlii, 63.
Euchlorine, preparation of, vi, 164.
Eudiometer, improved,R. Hare, ii, 312f; x, 67f; xii, 36f; xxxvii, 383.
—, barometer gauge,R. Hare, xxxii, 280.f
—, subsidiary,R. Hare, xv, 271.f
Eudiometry,theory of action of nitrous gas in,J. F. Dana, vii, 338.
—, new mode, with nitric oxyd, and apparatus for,R. Hare, xv, 262-271.f
Eupatorium huaco, xxiv, 279.
Europe, northern, rock formations of, xvii, 16.
—, physical geography of,G. F. Schouw, xxi, 127.
—, education in, seeEducation.
Eupyrchroite of Emmons, a phosphate of lime,L. C. Beck, xl, 77; xlvi, 32.
Evaporation, mode of accelerating, ix, 203.
— by means of bladders, xv, 392.
— of ice, xvi, 390.
— of spirits, iii, 376.
Excavations of basins or pot-holes by water, in the Green Mts., Vt., vi, 252.
Exhilarating gas, effects of, in two cases, v, 194.
Exley, T., specific gravities of nitrogen, oxygen, chlorine, vapors of carbon, sulphur, arsenic, phosphorus, xxxv, 298.
Exogenites, vii, 179.
Exogyra, seeZoology,Mollusca.
Expansion of solid bodies, instrument for,W. W. Mather, xxx, 324.f
Expedition,exploring, under L. Cass, ii, 178.
—, —, U. States, under Lieut. Wilkes, U. S. N., officers of, xxxv, 192.
—, —, —, progress of, xxxvi, 195; xxxvii, 189, 398; xxxviii, 387; xxxix, 193.
—, —, —, discoveries of, in the Antarctic regions, xl, 394; xlix, 150.
—, —, —, return of, xliii, 208.
—, —, —, course and abstract of results, xliv, 393.
—, —, —, account of, xlix, 149.
—, —, Antarctic, of the Chanticleer, notice of, xviii, 188.
—, —, British Antarctic, under Ross, proposed, xxxvii, 397; xlii, 153;
sailed, xxxviii, 204.
—, —, French, to the Antarctic regions, xxxix, 201.
Explorations, polar, account of, xvi, 124.
—, —, French, of Capt. Freycenet, iv, 391.
—, —, —, of Capt. D'Urville, xxxiii, 206.
—, —, —, ibid, to Antarctic regions, xxxix, 201.
—, —, —, of the Bonite, xxxiv, 219.
Exploring expedition, seeExpedition.
Explosion, singular, iv, 400.
— of hydrogen and oxygen, with remarks on Hemming's safety tube,J. W. Webster, xxxvii, 104.
—, from the action of nitric acid on phosphorus, xvi, 366.
—, submarine, ii, 95.
Explosive engine, byS. Morey, xi, 104.
Eye, mode of accommodation of, to different distances,W. C. Wallace, xxvii, 216.f
—, mode of exhibiting the blood vessels of, xxi, 166.
—, muscle attached to the lens of,W. C. Wallace, xxxv, 291;
–remarks on,D. Brewster, xxxv, 291.
—, cause ofmuscæ volitantesin,D. Brewster, xl, 333.
—, remarks on the retina,W. C. Wallace, xxviii, 278.
—, sensibility of the retina, explanation of facts in natural magic, xxxiii, 258.
—, on cataract or disease of,D. Brewster, xxxi, 368.
— of fishes, discovery of a muscle in,W. C. Wallace, xxvi, 394.
— of the Halibut, dissection of,W. C. Wallace, xxvi, 393.f
— of the shark, vitreous humor of,J. Herschel, xxxv, 293.
— of the streaked bass, dissection of,W. C. Wallace, xxvii, 216.f
— of different birds and reptiles, sclerotic bones of, xxxiii, 289.
— infirmaries in U. States, ix, 399.
F.
Fac similes of writing taken by means of fusible metal, v, 186.
Fair at Leipsic, iv, 392; vii, 381.
—, in Russia, iv, 392.
Fallsof the Cuyahoga, xxxi, 45.f
—, on the Genesee river, xviii, 209.f
—, Niagara and its vicinity, xi, 213.f
—, —, on the retrograde movement of,H. D. Rogers, xxvii, 326.f
—, the Tockoa and Tallulah, in Georgia, notice of,A. Foster, xiv, 209.