Equiseta, North American, _A. Braun's_ monograph, with additions

by _G. 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.

Erythronium albidum, xi, 177.

Eupatorium huaco, xxiv, 279.

Fedia radiata, iv, 57.

---- umbilicata, xlii, 50.

Flœrkea, on the genus, _C. S. Rafinesque_, i, 373.

Geum agrimonoides, iv, 64.

---- geniculatum, xlii, 35.

Gnaphalium, decurrens, i, 310, 330.

Gratiola micrantha, v, 287.

---- missouriana, x, 258.

Grevilleanum serratum, xi, 183.^f

Gyropodium coccineum, ix, 56.^f

Hedeoma hirta, x, 260.

Hedyotis purpurea, xlii, 27.

Helianthus Dowellianus, xliv, 82.

Herniaria americana, v, 291.

Heterotropa, characters of the genus, xlii, 18.

---- arifolia, xlii, 19.

---- asaroides, xlii, 19.

---- virginica, xlii, 19.

Hibiscus pentaspermus, v, 298.

Hoteia, characters of the genus, xlii, 39.

Houstonia minima, x, 262.

---- ciliolata, x, 263.

---- cœrulea, x, 263.

---- longifolia, x, 263.

---- purpurea, x, 263.

Hypericum Buckleii, xliv, 80.

---- graveolens, xlv, 174.

---- rosmarinifolium, xiv, 115.

Hyssopus anisatus, iv, 65.

Ilex laurifolia, v, 289.

Iris Duerinckii, xlv, 176.

---- lacustris, iv, 57.

Jatropha manihot, v, 303.

Juncus cylindricus, xliv, 83.

---- Greenei, xlv, 37.

Juniperus repens, iv, 69.

Jussieua tenuifolia, v, 294.

Justicia lætivirens, xlv, 176.

Kalmia cuneata, xxvi, 314.

Kobresia filiformis, xxix, 253.^f

---- globularis, xxix, 253.^f

Lilium canadense, xi, 177.

---- Catesbæi, xi, 177.

Lepidanche, new genus, _C. Engelmann_, xliii, 343.

---- appressa, xlv, 77.

---- compositarum, xliii, 344^f; xlv, 77.

Liatris flexuosa, xxxvii, 388.^f

---- fruticosa, v, 299.

---- oppositifolia, v, 299.

---- scariosa, iv, 67.

---- squarrosa, iv, 66.

Ligustrum vulgare, x, 258.

Limonia acidissima, v, 295.

Lindernia saxicola, xliv, 83.

Lobelia aphylla, v, 297.

Lodoicea sechellarum, notice of, _J. E. Teschemacher_, xxxvii, 396.

Lychnopora, a new genus from South America, notice of, ix, 375.

Lycoperdon tuber, or Indian bread, ii, 369.

---- giganteum, xxxviii, 391.

Lycopodium annotinum, xlv, 46.

---- inundatum, xlv, 47.

---- selago, xlv, 48.

Magnolia grandiflora, xxvi, 314.

Malva Lecontii, xlv, 176.

---- Nutalloides, xxvi, 313.

---- triangulata, vii, 62.

Maranta arundinacea, v, 302.

Matelea lævis, v, 291.

Melanthium virginium, xi, 178.

Monarda allophylla, iv, 56.

---- Bradburiana, x, 260.

---- scabra, x, 260.

Mosses and Ferns of the United States, by _L. C. Beck_, xv, 287.

Mucedinea, on vines, xxix, 367.

Muhlenbergia filipes, xliv, 83.

Mylocarium ligustrinum, xxvi, 319.

Myosotis inflexa, xlvi, 98.

---- macrosperma, xlvi, 98.

---- stricta, xlvi, 98.

---- verna, xlvi, 97.

Myosurus Shortii, i, 379.

Myrrhis canadensis, xi, 175.

---- longistylis, xi, 175.

Nelumbium luteum, iv, 64.

Nemopanthus, i, 377.

Nemostyles cælestina, xlix, 130.

---- gemmiflora, xlix, 131.

Neottia gemmipara, xlvii, 185.

Oakesia Conradii, xlv, 215.

Œnothera sinuata, xi, 180.

Olea americana, northern limit of, _H. B. Croom_, xxvi, 315.

Oligostachyum, iv, 58.

Orchis tribe, synonymy of some species of, _A. Gray_, xxxviii, 306.

Orchis spectabilis, monstrous flower of, _J. W. Bailey_,

xxxv, 117.^f

Oxyria reniformis, xlv, 29.

Panicum longisetum, iv, 58.

Passiflora Warei, v, 297.

Peaches growing on an almond tree, ii, 363.

Penstemon Nuttalli, xiv, 120.

Petalostemon roseum, v, 298.

---- villosum, iv, 66.

Peucedanum ternatum, xxviii, 165.

Phacelia brevistylis, xlv, 172.

---- fimbriata, xlv, 171.

---- Purshii, xlv, 171.

---- pusilla, xlv, 172.

Philadelphus hirsutus, xlix, 130.

Phalangium esculentum, iv, 60.

Phlox bifida, xi, 170.

---- divaricata, xi, 169.

---- glutinosa, xlv, 177.

---- pilosa, xi, 169.

Physalis pubescens, xi, 170.

Piper leptostachyum, v, 287.

Planera or Siberian elm, xx, 377.

Plumbago floridana, v, 290.

Poa modesta, xlv, 45.

Polanisia, i, 378.

Potamogeton Claytoni, xlv, 38.

---- pulcher, xlv, 38.

Potentilla supina, xiv, 114.

Prenanthes aphylla, v, 299.

Primula farinosa, iv, 59.

Prinos coriaceus, v, 293.

Prosartes maculata, xlvii, 201.

Protococcus kermesinus, analogies of, with the red particles of

the blood, xxxvi, 206.

Prunus pennsylvanica, xiv, 112.

Psychotria lanceolata, v, 290.

Pteris alabamensis, xlv, 177.

Pycnanthemi, conspectus of, xlii, 44.

Pycnanthemum albescens, xlii, 45.

---- aristatum, xlii, 44.

---- clinopodioides, xlii, 45.

---- dubium, xlii, 45.

---- hyssopifolium, xlii, 44.

---- incanum, xlii, 45.

---- lanceolatum, xlii, 46.

---- linifolium, xlii, 46.

---- montanum, xlii, 47.

---- muticum, xlii, 46.

---- nudum, xlii, 47.

---- pilosum, xiv, 117; xlii, 46.

---- Torrei, xlii, 46.

---- Tullii, xlii, 45.

Rafflesia, iii, 377.

Ranunculus, new species, near collinus, xiv, 116.

Rosa rubifolia, xiv, 113.

Rottböllia ciliata, i, 357.

---- corrugata, i, 355.

Ruellia ciliosa, xiv, 119.

Sabal Adansoni, xxvi, 315.

---- hystrix, v, 293.

---- minima, v, 293.

Salix ambigua, xlv, 35.

---- Cutleri, xlv, 36.

---- myrtilloides, xlv, 34.

---- phylicifolia, xlv, 35.

Sanguinaria canadensis, xlix, 130.

Sanicula marilandica, xi, 174.

Sarracenia, remarks on the genus and species of, _H. B. Croom_,

xxvi, 316.

---- pulchella, xxv, 75.

Saxifraga Careyana, xlii, 32.

Schænus effusus, northern limit of, _H. B. Croom_, xxvi, 315.

Scutellaria arguta, xlv, 175.

---- saxatilis, xlii, 18.

---- parvula, xiv, 117.

Selloa nudata, v, 300.

Shortia, characters of the genus, xlii, 48.

Silene axillaris, vii, 62.

---- regia, xi, 182.

Silphium, v, 301.

Sium tricuspidatum, xi, 175.

Smilax grandifolia, xlv, 171.

Solorina saccata, xlv, 49.

Sophora affinis, xlix, 130.

Squamaria rubina, notice of, xxxix, 183.

Stachys aspera, iv, 65.

Stanleya amplexifolia, v, 297.

Stillingia ligustrina, xlix, 129.

---- oblongifolia, xlix, 128.

Streptopus maculatus, xlv, 170.

Sullivantia, characters of the genus, xlii, 22.

---- ----, ohioensis, xlii, 22.

Swertia deflexa, found in Maine, xxxii, 23.

Thalictrum clavatum, xlii, 17.

---- debile, xlv, 175.

---- filipes, xlii, 17.

Thermopsis caroliniana, xliv, 80.

---- fraxinifolia, xliv, 81.

Thyrsanthus floridana, xxv, 75.

Tiarella cordifolia, iv, 63.

Tillandsia Bartrami, v, 292.

---- monostachya, v, 292.

Tradescantia virginica, iv, 60.

Trillium recurvatum, xi, 178.

---- viride, xi, 178.

Tullia pycnanthemoides, xx, 343.^f

Ulmus crassifolia, xlix, 129.

---- racemosa, xix, 170.^f

Usnea acharius, from N. South Shetlands, vi, 104.^f

Utricularia intermedia, xlv, 28.

---- nelumbiifolia, xlv, 215.

---- striata, xlv, 29.

Uvularia lanceolata, xi, 178.

---- perfoliata, iv, 61.

Vaccinium hirsutum, xlv, 175.

---- ursinum, xliv, 82.

Valeriana ciliata, xlii, 51.

Verbena bracteosa, xiv, 118.

---- lanceolata, xiv, 118.

---- hybrids of different species, xlvi, 99.

Vicia Douglassii, iv, 66.

Viola, monograph of the American species of the genus,

by _L. D. de Schweinitz_, v, 48.

---- asarifolia, v, 54.

---- bicolor, v, 78.

---- blanda, v, 65.

---- canadensis, v, 68.

---- clandestina, v, 65.

---- concolor, v, 79.

---- cordifolia, v, 62.

---- cucullata, v, 59.

---- debilis, v, 71.

---- eriocarpa, v, 75.

---- hastata, v, 77.

---- lanceolata, v, 64.

---- Nutalli, v, 77.

---- obliqua, v, 60.

---- ochroleuca, v, 69.

---- ovata, v, 58.

---- palmata, v, 51.

---- pedata, v, 50.

---- primulifolia, v, 64.

---- pubescens, v, 74.

---- punctata, v, 67.

---- repens, v, 70.

---- rostrata, v, 72.

---- rotundifolia, v, 63.

---- sagittata, v, 56.

---- striata, v, 76.

---- triloba, v, 57.

---- tripartita, v, 73.

---- uliginosa, v, 72.

---- villosa, v, 61.

Xanthium maculatum, i, 151.

Zizia pinnatifida, xlv, 175.

BOTANY, FOSSIL.

---- of the coal strata, _A. Brongniart_, iv, 266.^f

----, ---- ----, _H. Witham_, xviii, 110.^f

----, ---- ----, of England, iii, 246.

----, ---- ----, of Ohio, at Zanesville, _E. Granger_, iii, 5.^f

----, ---- ----, of Ohio valley, _S. P. Hildreth_, xxix, 1, 151.^f

Abies Benstedi, xlv, 402.

Carpolithus Smithii, xlv, 402.

Culmites, vii, 180.

Ficoidites scabrosus, xxxi, 31.^f

Filicites, generic characters of, vii, 181.

Fucoides bilobata, xlviii, 307.^f

---- demissa, xlvii, 360.^f

---- Harlani, xlviii, 299.^f

----, of New York, xxxvi, 46.

----, of Indiana, xliv, 290.^f

----, of Pennsylvania, xx, 415; xxvii, 347.

----, remarks on, by _Brongniart_, ix, 375.

Palmacites, generic characters of, vii, 182.

Palm, Ohio, xxxi, 35.^f

----, trees, Indiana, _D. D. Owen_, xlv, 336.

Sigillaria, vii, 180.

----, in coal fields near Liverpool, xlv, 403.

----, relation to Stigmariæ, xlix, 227.

----, marineria, xxxi, 30.^f

Stigmaria, vii, 180.

----, relation to Sigillariæ, xlix, 227.

Strobilus caryophyllus, xxxi, 32.^f

Syringodendron, vii, 180.

----, Kirtlandius, xxxi, 29.^f

----, trees and wood, see under _Fossil_.

Zamia sussexiensis, xlv, 401.

----, fossil fruits of, _G. A. Mantell_, xlv, 401.

Botanical collections, notice of several, xlv, 225.

----, fêtes in France, ix, 154.

----, garden, in Russia, at St. Petersburg, xx, 175.

----, ----, in Austria, ii, 340.

----, press, _J. Locke_, xxx, 54.^f

----, works of Rafinesque, xl, 221.

----, ----, notices of various, see under _Works_.

Bottles, glass, strength of, xix, 197.

----, for washing, in chemical manipulations, xxxi, 292.^f

_Botto, G. D._, on electro-chemical action, xxiv, 197; xxix, 369.

Boulders 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 R. Island, _C. T. Jackson_, xl, 184.

----, in Maine, _C. T. Jackson_, xxxvi, 152.

----, in the Connecticut valley, vi, 85.

----, in western N. 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, N. J., v, 241.

----, of Ohio, D. and _I. A. Lapham_, xxii, 300.

----, in the valley of the Muskingum, xxix, 11.

----, in Illinois, xxxiv, 141.

----, in Indiana, _J. S. Plummer_, xliv, 296, 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's_ citation of _Dobson's_ views 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.

----, or erratic blocks, theory of, _B. Struder_, xxxvi, 326.

----, glacial theory of _Agassiz_, xlii, 352.^f

----, see farther under _Drift_ and _Scratches_.

Boundaries of empires, affected by Physical Geography, xiv, 18; xvi, 99.

_Bourne, A._, manufacture of glass for optical purposes, xl, 207.

----, prairies and barrens of the west, ii, 30.

----, presentation of shells to Yale College, xxxix, 195.

----, resistance of liquids, xxviii, 231.

_Bourne, W. O._, Bergen Hill minerals, xl, 69.

_Bowditch, N._, life and character of, _A. Young_, xxxv, 1.^f

----, obituary notice of, xxxiv, 220.

----, notice of, by the Duke of Sussex, xxxvi, 214.

----, list of the scientific papers of, xxxv, 46.

----, Mécanique Céleste, publication of, xxxv, 17.

----, Treatise on Navigation, by, origin of, xxxv, 9.

_Bowdoin, J._, account of an irised aurora, xviii, 72.

_Bowen, A. W._, Floral Calendar for 1826-7, as kept in Herkimer Co.,

N. Y., xvi, 48.

_Bowen, G. T._, analysis of a siliceous hydrate of copper from

New Jersey, viii, 118.

----, ---- the tungstate of lime, of Huntington, Ct., v, 118.

----, description and analysis of Sillimanite, viii, 113.

----, localities of spodumene in Massachusetts, viii, 121.

----, magnetic effects produced by _Hare's_ calorimoter, v, 357.

_Bowman, J. E._, infusorial vegetable remains in England, xl, 174.

_Boué_, geological journey, ix, 23.

_Bowring, J._, on the boracic acid lagoons of Tuscany, xxxvii, 270.

_Boyé, M. H._, production of a perchloric ether, xl, 50.

----, on perchloric ether, xlii, 63.

_Brace, J. P._, list of plants growing in Litchfield Co., Conn.,

iv, 69, 292.

----, on the minerals of Litchfield Co., Ct., i, 351.

----, on the Phalæna devastata or cut-worm, i, 154.

_Braconnot_, on xiloidine, xxviii, 131.

_Brady, Samuel_, legend of, xxxi, 43.

Brady's Hill, legend of, xxxi, 20.

Brain of idiots, defective, xxxiv, 31.

_Brandes, H. W._, notice of, xxviii, 97.

----, observations on shooting stars, xv, 168; xxviii, 97; xxxiii, 361;

xxxv, 231, 361.

Brandy from potatoes, _Siemen's_ process for making, ix, 386.

_Braun, A._, Charæ of North America, xlvi, 92.

----, on North American Equiseta, xlvi, 81.

Brazil, number of known plants in, xv, 390.

Bread, on alcohol in, xxiii, 194; xxvi, 211.

----, use of sulphate of copper and other saline materials in making,

_M. Kuhlmann_, xx, 269.

Breast wheels, _A. B. Quinby_, xi, 333.

Breathing, voluntary, v, 203.

Breccia, cemented by hematitic iron, viii, 18.

----, quartzose, in western Massachusetts, viii, 18.

Breislakite, xi, 250.

_Breithaupt's_ specific gravities of minerals, table of, xxxi, 268.

_Bremicker's_ comet, xl, 207.

Brevicite, a new mineral species, xxx, 178.

_Brewster, D._, on the distribution of the coloring matter and the

optical properties of the Brazilian topaz, vii, 364.

----, a new fluid in minerals, vii, 186.

----, new structure in the diamond, xxxiv, 37.

----, monochromatic lamp, vii, 363.

----, double refraction resulting from pressure, xxi, 296.

----, cause of double refraction in crystals, xxi, 299.

----, on the polarization of light by reflection, xxii, 277.^f

----, on the action of second surfaces of transparent plates upon light,

xxiii, 28.^f

----, laws of the polarization of light by refraction, xxiii, 225.^f

----, a new properly of light, xxxiv, 20.

----, a new kind of polarity in homogeneous light, xxxv, 292.

----, new discoveries with the spectrum, xliv, 163, 164.

----, dichroism of some palladio-chlorides, xliv, 165.

----, on the cause of muscæ volitantes, xl, 333.

----, on the decomposition of glass, and on the polarization of

decomposed glass, xl, 324, 325.

----, on the line of visible direction, along the axis of vision,

xl, 334.

----, cause of increase of color when objects are seen with the head

inverted, xl, 343.

----, action of gaseous and other media on the solar spectrum,

xlii, 157.

_Brewster's_ (_Gilbert_) frame for spinning wool, notice of, x, 130.

Brewsterite, xx, 198.

Bricks of the ancients, xxvi, 234.

---- made near Jamaica, N. Y., xxxvi, 21.

---- made by a press, vi, 396.

----, use of anthracite in the making of, _W. Meade_, xviii, 118.

----, fire, made at Bennington, Vt., xxxii, 195; xxxiii, 202.

Bridge-building, _Town's_ new mode of, iii, 158^f; xxxviii, 276.^f

Bridge, description of, _G. W. Long_, xviii, 123.^f

----, chain, in progress, over the Menai, an arm of the Irish sea,

vi, 384.

Brines, see _Salt_ and _Springs_.

_Bringier, L._, geology, mineralogy, aboriginal inhabitants, &c. of the

regions of the Mississippi, iii, 15.

Bromine, discovery of, by _M. Balard_, xii, 198.

----, nature of, xiii, 398.

----, new compounds of, xiv, 386.

----, preparation of, xviii, 154.

----, and iodine, atomic weight of, _Berzelius_, xix, 383.

----, hydrate of, xx, 194.

----, combinations of, _C. Löwig_, xviii, 153.

----, and iodine in mineral waters, remarks on, _Prof. Daubeny_,

xxi, 366.

----, and iodine in the Baltic, xix, 382.

----, in the Salina brines and Saratoga waters, xviii, 142.

----, in the Kenawha waters, xviii, 260.

----, in the Hingham salt works, Mass., xx, 161.

----, and iodine in the salt springs at Athens, Ohio, _W. W. Mather_,

xlix, 211.

_Brongniart, Al._, miscellaneous geological and mineralogical

observations, iii, 216.

----, on the art of pottery and vitrification, new work of, xxxi, 134.

----, on organized remains, notice of, i, 71; iv, 396.

----, seven classes of rocks, xxxix, 149.

----, zoological characters of rocks, and the application of these

characters to determining some strata of the chalk era, viii, 213.

_Brongniart, Ad._, on the nature of the vegetables of the earth at

different epochs of its formation, xxxiv, 315.

Bronzing iron and gun barrels, method of, xxx, 173.

Bronzite, analysis of, (Seybertite,) _T. G. Clemson_, xxiv, 171.

----, locality of, in New York, xvi, 185; xxi, 327.

Brookite, xviii, 392.

_Brown, S._, substance accompanying the native nitre of Kentucky,

i, 146.

_Brown_, production of silicon from paracyanogen, xli, 208.

_Brown's_ active molecules, xvii, 390.

Brown spar in Massachusetts, viii, 235; in New York, ii, 237.

_Browne, J. B._, impression in marble, xix, 361.^f

_Bruce, Archibald_, biographical notice of, i, 299.^f

Brucite, see _Chondrodite_.

Bubbles, blown in melted rosin, ii, 179.

_Buckland, Prof._, Bridgewater Treatise of, noticed, _C. Lyell_,

xxxiii, 112.

----, instructions for conducting geological investigations and

collecting specimens, iii, 249.

----, on the vitality of toads enclosed in stone or wood, xxiii, 272.

_Buckley, S. B._, botanical labors of, xlii, 12.

----, new species of plants, xlv, 170.

----, skeleton of a Zygodon, xliv, 409.

_Buel, J._, excrementitious matter thrown off by plants, xxviii, 267.

Buhrstone in Indiana, i, 132.

----, in Missouri, iii, 28.

----, of Ohio, xxix, 142; xxv 233.

Building stone, expansion and contraction of, by variations of

temperature, _W. H. C. Bartlett_, xxii, 136.^f

----, ---- in western New York, xxxvi, 45.

_Burden's_ boat, introduced into France, xxx, 174.

_Burgess, A._, a notice of bees, xxii, 164.

_Burnett, G. T._, on the functions of vegetable life, xxi, 153.

Burning well, Ohio, xlix, 406.

Burns, a tried cure, xxvi, 188.

_Burritt, E. H._, on the elements of the solar system, xxvi, 129.

Bustamite, xviii, 392.

Butter, depuration of, xxiv, 200.

----, preservation of, xviii, 145.

----, volatile acids of, _J. U. Lezch_, xlix, 202.

Butterflies, emigration of, xiv, 387.

Butyric acid from fibrin, xlviii, 186.

----, ether, action of ammonia on, xlviii, 191.

_Byrne, O._, mode of determining heights, xliv, 12.^f

C.

Cacoxenite, analysis of, xviii, 391.

----, in New York, xl, 76.

Cadmia in the Salisbury furnace, viii, 57.

----, in N. Jersey, of furnace origin, called ancramite, v, 235, 399;

vi, 180.

----, in a furnace at Bennington, Vt., xii, 168.

Cadmium, sulphuret of, associated with prehnite, xii, 52.

Caffeine, viii, 381.

Calamine in Virginia, xliii, 169.

----, with the lead ore of the west, xii, 376.

----, in Michigan, xli, 185.

----, electric, in Michigan, xli, 185.

Calamites, vii, 180.

Calc spar, formation of, v, 405.

---- ----, and arragonite, _Becquerel_, on the different formation of,

xxiii, 387.

---- ----, in Connecticut, vi, 246.

---- ----, Massachusetts, i, 115; vii, 255; viii, 32.

---- ----, New Jersey, ii, 194; xl, 69; xliv, 60.

---- ----, New York, iv, 45; ix, 251; xxv, 346; xl, 76.

---- ----, Nova Scotia, xxx, 347.^f

---- ----, Pennsylvania, x, 222.

---- ----, western states, iii, 67; vii, 47.

---- ----, of Rossie, N. Y., with figures of crystals, xlvi, 33.^f

---- tufa in Massachusetts, viii, 34.

---- ----, in New York, vii, 252.

---- ----, in Western States, vii, 47.

Calcium, atomic weight of, xlvii, 189.

----, obtained by _R. Hare_, xxxvii, 267; xxxviii, 115, 181, 189;

xxxix, 362; xl, 293.^f

Calculating machine, Constants, _Babbage's_, xxviii, 64.

Calculi, chemical examination of, by _J. F. Dana_, iv, 149.

----, urinary, composition of, xvii, 190.

----, gouty, xlvii, 197.

----, in the ovary of a turtle, _J. E. Muse_, xxvii, 163.

Calculous affections, _E. D. Smith_, iii, 300.

---- ----, use of alkaline pastils in, xi, 388.

Calculus, higher, fundamental principle of, demonstrated by the method

of indeterminates, xvii, 74.

----, differential, first principles of, _T. Strong_, xlv, 269.

California, climate of, _J. Ball_, xxviii, 15.

----, elevation of, during the tertiary epoch, _T. A. Conrad_,

xxxv, 245.

Calligraphy, method of, by _M. Le Roy_, vii, 377.

Calomel, remarks on, xlvii, 193.

Caloric, a cause of galvanic currents, _J. P. Emmet_, xxv, 269.

----, the cause of all kinds of attractions, _S. L. Metcalf_,

xxvii, 153.

----, see farther, _Heat_.

Calorificator, xxx, 168.

Calorimeter, new, _A. Ure_, xxxviii, 109.

Calorimotor, _R. Hare_, i, 413^f; v, 94.

----, magnetic effects of, v, 357.

----, remarks on _Dr. Hare's_, v, 364.

----, for galvano-ignition, _R. Hare_, xxxii, 284.^f

----, mode of increasing shocks, _C. G. Page_, xxxi, 137.^f

Calstronbarite, supposed new mineral, _C. U. Shepard_, xxxiv, 161.

----, not a mineral species, xliii, 366.

Cambrian system, _Sedgwick_, xxxvii, 220.

Cambridge, England, improvements in, xlvi, 403.

Cambridge course of mathematics, review of, v, 304.

Cameos, from shell, xxxii, 257.

_Campbell, A. W._, an electro-magnetic engine, xxxv, 343.^f

Camphor, crystallization of, _M. John_, xiii, 175.

----, odor of, destroyed temporarily by electric action, xix, 380.

Canada, maps of, in course of preparation, xvi, 380.

Canada, vegetable coloring materials in, xviii, 186.

----, cave containing bones at Lanark, ix, 354.

----, supposed volcano in, xxx, 238, 241.

----, highest mountain in Lower, xxx, 239.

----, geology and minerals of the vicinity of Kingston, xviii, 104.

----, transition rocks of the Cataraqui, _R. H. Bonnycastle_, xviii, 85;

xx, 74^f; xxiv, 97^f; xxx, 233.^f

----, various fossils in, _J. Bigsby_, viii, 60.

----, geological survey of, ordered, xlviii, 404.

Canals, mathematical problems relating to contents of, _D. C. Lapham_,

xxvii, 127.^f

----, navigable, _Girard_ on, iv, 102; vii, 286.

----, Amsterdam, v, 181.

----, in the U. States, extent of, _Prof. Henry_, xxxiii, 296.

----, method of conducting surveys of, in the state of New York,

_E. F. Johnson_, xxiv, 19.^f

----, Erie, tolls on, x, 398.

----, of Ohio, xx, 416; xxv, 241.

----, Ohio and Pennsylvania, xxxi, 40.

----, of Pennsylvania, _E. Miller_, xxv, 85; xxvi, 108.

----, route of the Michigan and Illinois, _C. U. Shepard_, xxxiv, 138.

----, Louisville and Shippingsport, Ky., xiv, 65.^f

Canal, Welland, U. C., account of, _W. H. Merritt_, xiv, 159.^f

----, to connect Lake Superior with Lake Huron, xlvi, 213.

----, locks at Cincinnati, Ohio, plan of, _D. Lapham_, xxiv, 70.^f

----, navigation, mode of, vii, 190.

Cancer, fossil, in New Jersey, xvii, 287.

Cancers, cured by surgery, xii, 386.

Candle, motion of the melted grease in warming, _C. Fox_, xxxiii, 198.^f

----, ---- ----, note on, xl, 148.

Candlenut tree, of the Sandwich Islands, xxxiv, 209.

Cannel coal, see _Coal_.

Canova, statue of, by _Ceccarini_, iv, 197.

Cantharides, vesicating principle of, _G. W. Carpenter_, xxi, 69.

Cantharidin, in the potato fly, _J. F. Dana_, ii, 137.

Caoutchouc, electrical properties of, xx, 404.

----, _Mitchell's_ mode of working, xix, 195.

----, sheet, xvii, 399.

----, cloth coated with, xxxiii, 400.

----, rendered impermeable to gas, xlvii, 194.

----, mineral, vi, 370; xl, 215.

----, ----, in Connecticut, vi, 370.

Cape of Good Hope, geology, scenery, &c., _G. Champion_, xxix, 230.

---- ---- ----, fossils of, xlix, 213.

Capillary attraction, _T. Strong_, xviii, 70.

---- ----, influence of electricity on, _J. W. Draper_, xxvi, 399.

---- action of different solutions, xiv, 384.

---- ----, of fissures, viii, 377; ix, 193.

---- ----, a singular instance of the passage of mercury along

a lead bar, _J. Henry_, xxxviii, 180.

---- tubes, electricity produced by ascent of fluids in, ix, 193.

Capitol, at Washington, dimensions of, xvi, 168.

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