Brackenridge’s Filices, 404, 423. Brandegee, T. S., 671, 672. Braun, A., 374, 383. Breeding, cross. See Fertilization. Brewer, W. H., 532, 636. Brewster, Sir David, 104. Brigham, C. 769. British Association, 387, 592, 722, 756, 759, 791, 807. British Museum, 22, 110, 132, 146, 153, 379, 387, 592. Britton, N. L., letter to, 813. Brongniart, A. T., 23, 174, 382, 418, 611. Brooks, Phillips, 805. Brougham, Lord, 165. Brown, R., 22, 110, 112, 115, 120, 124, 128, 132, 141, 151, 175, 371, 376, 378, 387, 418, 442, 443, 449, 451, 463, 498. Browne, W., 731, 756. Browning, 713. Bryce, 804. Buckle, 613. Buckley, S. B., 311. Bunbury, 788. Buonaparte, C., 179. Burgess, E., 668. Bury, Lady Charlotte, 120, 121, 137. Butler, B. F., 746, 748. Cairnes, 491. California, journey to, 627, 670, 761. Calluna vulgaris, 468. Cambridge, Mass., appointment at, 27. call to, 283-286. removal to, 287. Cambridge University, England, degree at, 800. Canby, W. M., Letters to, 556, 641, 648, 651, 682, 687, 779; references to, 557, 633, 686. Canby and Redfield, letters to, 712, 723. Canterbury, Archbishop of, 804. Carex, Boott’s collection of, 91, 92. Carey, John, 20, 26, 33, 322, 354, 407, 697. Carlyle, 742. Carpenter, 740. Carruthers, W., 592. Caruel, T., 607. Catesby, plants of, 146. Cathedrals, 806. Cats, 436. Cavendish, 451. Censorship of the press (Vienna), 216. “Ceratophyllaceæ, Remarks on,” 20. Ceratophyllum, 691. Cereus giganteus, 408. Chalmers, 102. Channing, E. T., 27. Chapman, A. W., 540, 545, 650. Chapmannia, 147. “Characteristics of the North American Flora,” 756. Chevreuil, 797. Chiswick Gardens, 116. Christison, Sir R., 104. Christy, W., 119. Church, R. W., letters to, 394, 403, 429, 444, 463, 518, 523, 533, 543, 560, 563, 570, 591, 595, 597, 601, 608, 612, 617, 628, 653, 662, 664, 678, 693, 697, 703, 724, 734, 743, 747; references to, 379, 394, 565, 594, 804. ---- Letter from, to Mrs. Gray, 750. Cinchona officinalis, 551. Claytonia Virginica, 14. Clayville, 4. Cleveland, Ohio, 71. Clift, W., 112. Climbing plants, 537, 539, 548, 549. Clinton, Grammar School, 7, 8. Clinton, G. W., 546. Clive, Mrs. Archer, 376. Clough, A. H., 394, 395, 396. Cobbe, Miss F. P., 638. Cogniaux, 669. Cohn, 676. Colenso, 491. Coleridge, Lord, 748, 754. Collectors, 272, 341. See, also, Berlandier, Bolander, Buckley, Coulter, Crawe, Diell, Douglas, Drummond, Eschscholtz, Fendler, Frémont, Geyer, Goldie, Gregg, Hugel, Kneiskern, Lindheimer, Michaux, Nuttall, Palmer, Parry, Pringle, Pursh, Rugel, Sartwell, Thurber, Wislizenus, Wright. College of Surgeons, 117. Collinson, Peter, 370. Commonwealth (Vegetable), 496. Compass plant, 400, 401. Compositæ, 26, 27. Congdon, J. W., 682. Congreve, R., 379. Coniferæ, 674, 675. Constable, J., 26. Cooke, J. P., 527. Cooper, Sir Astley, 113, 119.