MANCHESTER, N.H., Feb. 14--Beginning his third campaign trip to New Hampshire, Senator Eugene J. McCarthy (D-Minn.) today charged that President Johnson's supporters in this state have used "the kind of language which should be kept out of the political debate."

Referring to a charge by Governor John King that McCarthy was advocating "surrender" and "appeasement," the antiwar Democrat said, "it looks to me as though Governor King is trying to please the President by proving he is more against me than even the President is."

"The administration has come very close to saying things like that, suggesting that those of us who are critical are doing a disservice to America, hinting that we are unpatriotic or cowardly, McCarthy said, in an interview at Nashua Radio Station WOTV. "And usually when a line of that kind is taken at the top, those who are somewhat subordinate take it and carry it to even greater extremes," he added.

Answering a charge by New Hampshire Senator Thomas MacIntire, also a Johnson supporter, that McCarthy has not spelled out his position on Vietnam, the candidate said "I'm beginning to think that the Senator either doesn't read or doesn't hear well."

Keeping up the brisk pace he has set for himself in New Hampshire, McCarthy toured several plants and business firms in Nashua and Manchester today. His daughter Mary McCarthy '70, who announced Tuesday that she was withdrawing from Radcliffe to aide her father's Presidential bid, spent the day campaigning with her mother in Manchester.

At one of three receptions for the senator this evening in Manchester, McCarthy was asked what voters could do if the choice in November turned out to be between Johnson and Nixon. "I don't know what you do if you get a choice between vulgarity and obscenity," he replied. "I'd like to give you more of a choice."

At the same reception, McCarthy urged Republican voters to write-in his name on the Republican ballot.