New York, Oct. 18--Margery Wilson, who describes herself as a "charm expert" and whose correspondence as such keeps 30 stenographers flailing their typewriters, announced to the United Press today that she has completed a "conversation test" among 10,000 American women.

Miss Wilson sought to determine which subjects dominate the conversation of the women with whom she does business.

She has concluded that girls between 17 and 20 can talk intelligently on four subjects: make-up, movies, boys and school.

The average woman, however, can discourse favorably on the following: home, clothes, family, marriage, love, beauty culture, men, sports, movies, weight reduction, babies, politics, books, money, bargains, crime, air conditioning, the next war, revolution, communism, and Shirley Temple.