The Friends of the Arthritis Institute of Research of the National Hospital in Arlington recently presented Dr. Thomas McPherson Brown, director of the Institute, with $12,500. The Institute will use the money to purchase a laser scanner and a sonic cleaner for the laboratory.

Since 1971 the 15-woman group has organized bazaars, raffles and bake sales to raise funds for the institute. The F.A.I.R. officers are: President Helen Parker of Silver Spring, Vice President Thelma Clark of Alexandria, Recording Secretary Iola Burk of McLean, Corresponding Secretary June Bixby of Alexandria, Treasurer Reidolyn Mutter of McLean and Historian Helen Munson of Arlington. New Phi Beta Kappa Members

Rick Larrick of Arlington, Mary Ruth Bowman of Vienna, Susan Meyer of Vienna, Alan James Meese of Fairfax, Roy Burton Sauberman of Fairfax, and Bradley Anson Jacobs of Oakton have been elected to membership in the Alpha of Virginia chapter of Phi Beta Kappa, a society for academic excellence, at the College of William and Mary. Larrick is majoring in psychology and economics and plans to go to graduate school next year. Bowman is an English and math major. Meyer, who is studying ethics and criminal behavior through an interdisciplinary study program, plans to go to law school and study international law. Meese is majoring in Greek and economics and will attend the University of Chicago's law school next year. Sauberman, a biology major, plans to go to medical school after graduation. Jacobs is majoring in chemistry and plans to go to graduate school next year and work toward a doctorate in chemistry. Future Homemakers Elect

The Future Homemakers of America elected new officers at the 41st annual state leadership conference held in Roanoke. The following local students were among the new officers: Patrice Elliott of Hayfield Secondary School, vice president for Home Economics Related Occupations, and Heather Pierce of Fairfax High School, vice-president in charge of publicity and history.

FHA is composed of high school and secondary school students pursuing vocational courses in home economics. Salvation Army Auxiliary Officers

The Salvation Army Auxiliary of Fairfax has elected the following officers for 1986-87: president, Grace Lucas of McLean; vice president, Ceres Gaskins of Great Falls; treasurer, Esther Devers of Alexandria; recording secretary, Mary Kinsey of Annandale and corresponding secretary, Jean Everly of Springfield.