GREEK COMMUNISTS IN EGYPT: London, 17 – According to telegrams from Alexandria, on Monday night the Egyptian police raided a house believed to be the nerve center of the Middle East headquarters of communist activities. The police (of the Nasser government) had received information that a central communist organization consisting of seven men and two women, all Greek citizens, had formed in order to preserve communist principles among Greeks in Egypt and to gain control of activity in the Middle Eastern states. As the police said, they found in the house important coded documents in the form of 20,000 proclamations in Arabic. The organization, according to the police announcement, took orders from the illegal Communist Party in Greece. Among the men arrested, one had been an officer and another a first sergeant in the communist ranks during the guerrilla war in Greece. Both arrived in Egypt a year ago and made contact with the five other men, one of whom is a merchant, the other a commission agent and the other three clerks. Of the two young women, one is a typist and the other a nurse at the Greek hospital in Alexandria.