Buchanan, Robert, Ohio. 
Buckhout, Wm. A., Pa. 
Buckley, 8. B., Texas. 
Bumstead, Dr. F. J., N. Y. 
Burbank, Prof. I. S. 
Burgess, Edward S., N. Y. 
Burk, Isaac, Pa. 
Burr, Fearing, Mass. 
Burrill, Prof. T. J., Ll. 
Buswell, E. W., Mass. 
Butler, Rev. S. R., Mass. % 
Cc. 
Calvin, Prof. Samuel, Iowa. 
Canby, Win. M., Del. ‘ 
Carr, Dr. (Ezra ?), Cal. 
Carrier, Rev. Joseph C., Ind. 
Carruth, Prof. J. H., Kans, 
Carson, Dr. Joseph, Pa. Spec. Medical, 
Carter, Dr. Francis, Ohio. 
Carter, J. J., Pa. 
Carter, Miss Maria E., Mass. 
Cassebeer, H. A., N. Y. 
Cassells, Prof. J. Lang, Ohio. 
Castelahn, Karl, Mass. 
Chadbourne, Pres. Paul A., Mass. 
Chapman, Dr. A. W., Fla. Spec. Sowtheri. 
Chickering, Prof. J. W., D. C. 
Clark, Dr. Daniel, Mich. 
Clark, Prof. Frank W., D. C. 
Clark, Jas. H., R. L. Carboniferous. 
Clark, Miss Mary H., Mich. 
Clark, M. W., Mass. : 
Clark, R. B., Mass. 
Clark, W. S., Mass. 
Clinton, Judge G, W., N. Y. 
Cochrane, Mrs. H. A., Mags. 
Coles, Isaac, N. Y. 
Coleman, N., Mich. 
Commons, A., Del. 
Comstock, Frederic H., N. Y, 
Comstock, Prof. T. B., Ohio. 
Congdon, Joseph W., R. I. 
Cook, Miss Mary, N. Y. 
Cooper, Dr. J. G. Cal. Spec. Trees. 
Cope, Prof. E. D., N. J. 
Copeland, Prof. H. E.. Wis. 
‘ Spec. Coniferae. 
Marine Algae, 
—— BN. Ne Y. 
D, 
Dahl, Christian, W. I. 
Dame, Prof. Luther, Mass. 
Dame, L. L., 
enamge mice W., Wis, 
arby, br. John, Ky. Spec. Southern, 
Darrach, Dr, J. Pa. dd Ad 
Spec. Filices, 
‘Davenport, Geo. E., Mass. 
Davi Wai - 
rs. ass. Marine 
Davis, Chas. M., N. J. a 
Davis, J. Frank, N, Y, 
50 
| Davis, Miss Mary E., Mass. 
| Davis, Miss N. J., Pa. 
| Davison, Miss Emily, Ky. 
| Dawson, Jackson, Mass. 
| Dawson, Dr. J. W., Br. Am. 
Day, David F., N. f£. 
| Day, Dr. W.. De ¥F., N.Y. 
| Dean, Dr. D. V., Mo. 
Demcker, Robert, N. Y. 
Denslow, Herbert, Ct. 
| Dickinson, Mrs. W, P,, Iowa. 
Doggett, Mrs. Wm. E., Ill. ee 
; Donhoff, A. V. Ky. 
| Dorsch, Dr. Edward, Mich. 
| Douglass, Dr. James S., Wis. 
' Dowd, Miss S. E., N. Y. Spec. Cryptogameae. 
Drummond, A. T., Br. Am. 
Dudley, W. R., N. Y. 
E. 
Eaman, Mias Mary, Mich. 
Earle, Miss A. B., Mass. 
Eaton, Prof. Daniel C., Ct. 
| Marine Algae. 
! 
Fossil, 
Spec. Filices and 
| Edwards, Dr. A. M., N. J. 
Edwards, Miss Sara, Ct. 
Edwards, Wm., Mass. Spec. Filices. 
| Ellis, J. B., N.J. Spec. Fungi. 
| Elmore, Samuel E., Ct. 
| Emerson, George B., Mass. Trees. 
Emerton, James H., Mass. 
Draughisman,. 
Endicott, Wm. E., Mass. Cult, Spec. Bulbs 
and Climbers. oe 
' Engelhardt, Prof. Francis E., N. Y. RF 
Engelmann, Dr. George., Mo. spec. Vitis, 
seer , Loranth . Conrferae, Yucea. 
i Vide Gray's Man., Pref., etc. 
| Ennis, Prof. Jacob, Pa. Rees 
Errington, MissG., N. Y. Spec. Californian. 
Eude, Dr. Charles, N. J. 
' Everett, Dr. O., Il. 
Diatomaceae, ele. - 
Botanical 
F. 
Fales, Prof. J. C., Ky. 
Farlow, Dr. Wm. G., Mass. 
Ory imeae. 
Faxon, Edwin, Mass, ‘ 
Faxon, C. E., Mass. ~ 
Faxon, Walter, Mass. ae ae 
Fazel, J., N. Y. Botanical Artist. 
Spec. Lower 
be 
oO 
i 
E 
= 
i 
Fish, Geo. T., N. Y,. 
Fisher, Dr. G. J., N. Y- 
Flint, Wm. F., N. H. 
Foote, Lewis, Mich. 
Forbes, S. A., Ill. 
Fowler, Rev. Jam2s, Br. Am. 
Fowler, Samuel P., Mass.  77ees. 
Francis, Dr. G. E., Mass. 
| French, Prof. G. H., Il. 
_ Fritchey, J. Q. A., Mo. 
| Froebel, C. H., N. Y. : 
! Frost, Prof. S. T., N. Y. . 
Frost. Chas. C., Vt. Spec. Cryptogamed?. 
Fuller, A. S., N. J. Spec. Cuit. 
Fuller, C. B., Me. 
Fuller, Joseph, N. Y. | 
G. 
Garber, A. P., Pa. 
Gay, Dr. C. C.F. N.Y; 
Gentry, T. G., Pa, 
