¶Mr. Nixon instructed senior White House aides to try to avoid the risk of perjury if called before a grand jury by professing faulty memories. In stead of a discussion of that tactic as a possibility, as par trayed in the White House ver sion of the transcripts, the committee transcript quotes Mr. Nixon as having said: “Just be damned sure you say ‘I don't remember; I can't recall; I can't give any honest answer to that that I can recall.” In the White House account, the quote begins, “But you can say I can't recall,” suggesting a rhetorical rather rather than impera tive sense to the conversation.

Releised by Nixon Backer

The extracts from the com mittee transcripts, drawn from the 19 tape recordings Mr. Nixon has surrendered to the panel, were contained in sev. eral of the 14 confidential memos written by William P. Dixon, a Democratic lawyer on the permanent staff of the Judi ciary Committee.

Ten, of the memorandums were made available to The New York Times by a Republi can committee member who has generally supported Mr. Nixon in the impeachment in vestigation. Republicans ob. tained the documents yesterday after complaining that some of the memorandums had been given to reporters by Demo cratic committee sources.

At the White House, where various officials have com plained this week that leaks from Democrats on the commit tee were designed to prejudice the President's defense against impeachment, Gerald L. War. ren, the deputy press secre tary, said today that “one‐sided materials” were being dissemi nated selectively and “out of context.”

Some of the contents of the memos have seeped into pub lib print over the last week. But none of the Democratic sources had disclosed so many of the documents, nor had it been apparent from selected portions of them how ex tensively the committee trans cripts differed from those pre pared by the White House.

The House committee staff received some White House tapes in its inquiry and pre pared a transcript of those tapes for the committee mem bers. Several of Mr. Dixon's memos compare’ the commit tee staff's transcripts with transcripts of the same tapes released by the White House.

The memos were written in response to requests from some Democrats on the com mittee for private guidance in analyzing the voluminous evidence presented at the impeachment hearings.