- 10 — and the ashes are monitored with sensitive laboratory instruments. Very minute amounts of radioactivity can be measured by this technique. During the 1956 series, the following Weather Bureau stations will make fallout collections: Albuquerque, New Mexico Las Vegas, Nev. Atlanta, Georgia Los Angeles, Calif. Billings, Mont. Louisville, Kentucky Binghamton, New York Medford, Oregon Boise, Memphis, Tenn. Idaho Boston, Mass. Miami, Florida Chicago, Minneapolis, Minn. Illinois Cincinnati, Ohio New Haven, Conn. - Cleveland, Ohio New Orleans, La. Concord, N. H. New York (La Guardia), N.Y. Corpus Christi, Texas Philadelphia, Pa. Dallas, Texas Pittsburgh, Pa. Des Moines, Rapid City, S$. Dakota Iowa Detroit, Michigan Rochester, N. ¥. Grand Junction, Colorado St. Louis, Mo. ‘Hatteras, N.C. Salt Lake City, Utah Jacksonville, Fla. San Francisco, Calif. Knoxville, Tenn. San Juan, P. R. (more)