From the September 27, 1930, issue

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NEW MEASURES MAY REVEAL BIGGER STARS

After 8 years of preparation, the 50-foot interferometer at the Mt. Wilson Observatory in California has been completed. Francis G. Pease, who used the smaller one, 20 feet in length, designed the new instrument and supervised its construction. The smaller one was attached to the 100-inch reflecting telescope at the observatory, and with it the first star diameters were measured, using a principle worked out originally by Prof.