Edward Brown-Séquard, M.D., London.
John Esten Cooke, Esq., Richmond, Va.
Rev. J. W. Cummings, D.D., Pastor of St. Stephen’s Church, New York.
Prof. James D. Dana, LL.D., Yale College, New Haven, Conn.
Hon. Charles P. Daly, Judge of the Court of Common Pleas, New York.
Hon. Charles S. Davies, LL.D., Portland, Me.
Ralph Waldo Emerson, Concord, Mass.
Hon. Edward Everett, Boston, Mass.
Pres. C. C. Felton, LL.D., Harvard University, Cambridge, Mass.
D. W. Fiske, Esq., Secretary of the Geographical and Statistical Society, New York.