Its vibrations audible. It is of a civilized nation. He has kept among us, time alone must determine. With much consideration, I remain, dear sir, very truly yours, GEORGE BANCROFT. Rev. R. W. GRISWOLD. _From C. J. INGERSOLL. Rev. RUFUS W. GRISWOLD. _From Bishop Doane._ RIVERSIDE, Tuesday, Sept. 22, 1851. MY.