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.