More testis for Poseidon WASHINGTON (API — Pentagon officials hope to resume testing Poseidon missiles in about a month, following a series of failures in both the missile • and its nuclear-lipped warheads. The Poseidon, a mainstay of the underwater nuclear submarine missile force, i has (ailed in over half of n recent scries of tests. Navy Hear Adm. levering Smith recently testified before the Senate Armed Services Committee dial, as a result, he had ' recommended a recall of the missiles. He is Ihe project manager for Ihe missiles and the Polaris submarines in which they are carried. Inslcad, the Navy decided to ca|l in just a few of the missiles lo iron out their problems. Pentagon officials say there is no impairment of American .nuclear defense forces. Thcysjiy many of Ihe Poseidon's problem's 'are in its warheads, of which (here arc usually 10 on each missile so lhal if one warhead were faulty nine would be capable of delivery to targets in the Soviet Union or else' else' where. Nonetheless, tests of the Poseidon were halted lasl spring after 52 lest firings. "We may resume testing in a monlhorsn." Punlagon. spokesman Jerry W. Friedheim said in response to questions about Smith's heavily-censored Senate lestimony. Meanwhile, the Poseidon manufacturer, ^.ockheed Missile and Space Division at Sun- hyvaUc. Calif., arid Navy experts are iillcinpling'io decide if the technical problems arc basic in design or the result of poor quality control during production. Forty-one U.S. submarines carry nuclear missiles. Thirty-one of those arc in Ihe process of receiving the long-range Posei'dons. which are replacing older Polaris-type nuclear warheads. Hach submarine carries 16 missiles, which in turn carry 10 warheads thai can be sent against widely separated targets. AA q o p r es i de.s o ver co n g r es TOKYO (AP) '-• China has held its inth national ..congress, presided over by Chairman .Mao' Tse-tung, Peking's official I Isinhua news agency announced today. llsinhiia. in a 1 broadcast monitored in Tokyo, .said the gathering was held in Peking from Thurxday f uf last week through Tuesday. The agency described il as "a congress of unity, a congress of victory ami a congress fulluf vigor."