The Harvard alumni in the different parts of the country are again agitating the election of overseers from places outside of Boston. The following letter from a Plymouth gentleman appeared in yesterday's Advertiser:

"The committee of the alumni of Harvard have issued their annual circular containg a list of names suggested for candidacy to the board of overseers. As usual, the list is made up almost wholly of Boston names. With many others, I have long shared the opinion that a broader circle should be represented. The board, as at present constituted, contains only two members, Messrs. Sargent and Weld, both of New York, outside of what I may be permitted to call, in no invidious sense, "the Boston ring." There seems to be no reason why the outgoing members, eligible for re-election, Messrs. Codman Hodges and Smith, should not be denominated. If to these, John D. Washburn, of Worcester, of the class of 1853, and Charles W. Clifford, of New Bedford, of the class of 1865, be added, something will be done towards enlarging the influences which control the destinies of the university. I make this suggestion with diffidence, and only under the conviction that it must be made by some one, in order that a concentration of votes essential to success, may, if possible, be secured."

More, at the recent regular meeting of the New York alumni they advocated the names of Mr. Charlemange Tower of Philadelphia for one of the vacant places on the board. Prominent men in the west are likely, also, to receive nominations that the list next June may contain names from all sections.