Abstract
Early-type galaxies in the Virgo cluster were studied with the 3'.2, 1420 MHz beam at the Arecibo Observatory. For two SO and three Sa galaxies, neutral hydrogen was found in an extended disk with a ''hole in the middle.'' Flat rotation curves in the outer regions are indicated, as for later-type spirals. For two additional SO galaxies, neutral hydrogen emission, with a narrow Gaussian velocity profile, was found only from an unresolved region. For one further case, the large SO galaxy NGC 4762, emission with a broad velocity profile was found from an unresolved region. (AIP)
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