Early Undertakings, 29-84. Eaton, Amos, 14, 40. Eaton, D. C., letters to, 438, 470; receives Garber’s plants, 702. Eaton’s Manual of Botany, 14, 40. “Ecce Homo,” 543. Edinburgh, visit to (1839), 97-105. Education, 5-8. Education, Botany, in liberal, 325. Egypt, 572-586; plants in, 575, 576; medical practice in, 582. Ehrenberg, C. G., 26, 269. Eichler, A. W., 795. “Elements of Botany,” 20, 27, 32, 54. “Elements of Botany,” 1887, 792. Eliot, S., 28. Eliot, C. W., 526; letters to, 620, 634. Ellimia, 171. Elwes, H. J., 810. Embryo of Pinus, 151. Emerson, G. B., 288, 292. Emory, 356. Endlicher, S. L., 25, 210, 215, 795. Engelmann, G., letters to, 281, 291, 297, 305, 312, 340, 351, 355, 360, 373, 383, 391, 399, 404, 417, 446, 452, 465, 471, 493, 514, 530, 545, 551, 558, 589, 670, 680, 686, 696, 715, 725; references to, 272, 663, 686, 729, 746, 753, 782. ---- Obituary notice, 753. ---- Herbarium, 753. Engelmann, G., Jr., 772. “Epistolæ Linneano-Jussieuanæ,” 410. Erie Canal opening, 9. Eriogoneæ, 600, 601. Eschscholtz, 152. “Essays and Reviews,” 464. Europe, journeys to: First, 21, 85, 271; second, 369-388; third, 414-420; fourth, 565-599; fifth, 701-724; sixth, 792-810. European politics, 604, 606, 608. Evolution, 424, 428, 430, 450, 455, 489, 497, 504, 508, 510, 528, 626, 637, 666, 695. Evolution, Agassiz’s views of, in 1847, 345. Exhibition, London, 1851, 379, 384. Exploring Expedition, U. S., 21, 61, 64, 66, 359, 366, 376, 398, 409, 484, 623. ---- North Pacific, 435. Fairchild, 666, 667. Fairfield Academy, 8. Fairfield Medical College, 12, 29. Faraday, 114. Farlow, W. G., 617, 625, 640, 762, 765, 766, 770. Farnsworth, Chancellor, 78. Farrar, Canon, 780. Father of Asa Gray, 2, 4, 5, 334. Felton, C. C., 479. Fendler, A., 341, 343, 351, 355, 360, 361, 426, 447, 515, 531, 540, 650. Fendlera, 391. Fenzl, E., 25, 218, 222, 795. Ferns, 402. Fertilization, 425, 484, 485, 493, 505, 508, 509, 539, 664, 695. Fink, 766. First Book, 20, 32, 54. First contribution to American Journal of Science, 19, 32. “First Lessons in Botany,” 414, 418, 429, 444. First Plant determined, 14. Fischer, 74. Fisher, G. P., 696. Fisher Professorship, 27. Flax spinning introduced, 5. Flora, Beck’s, 39. Flora of California, 636, 641, 643, 694. Flora or Fauna, objects of, 657. Flower, Sir W. H., 595, 722, 754. Folwell, N. W., 35. Forbes, H. O., 780. Forbes, James, 99, 103, 413. Forestry, 276. Forster, E., 134, 139, 143. Fouquiera, 400, 401, 419. Fox, Miss, 755. Franco-German War, 606, 608, 609, 612. Fraser, J., 134, 135. Fraser, Bishop, 560, 602. Freeman, 725. Fremantle, 806. Frémont Expedition, 294, 297, 327. Fresenius, J. B. G. W., 373. Froude, 742. Fry, Sir E., Letters to, 729, 738, 746, 754, 779, 789, 810. Galileo, 743. Garber’s Porto Rico Collection, 702. Garwood, Rev. Mr., 123. Gaudichaud, 24, 158, 162, 383.