Ohio Source Counts: Comments by Harris and Kraus

Jauncey and Niell1 point out that the flux densities of sources in the Ohio survey tend to be underestimated at low values of flux density. We have been aware of this from independent measurements by Dixon, Ehman, and others of the OSU Radio Observatory staff, made in 1969 with the NRAO 300 foot radio telescope at Green Bank. The principal cause of the underestimation was traced to an error in data reduction which affected certain sources. Corrections can be made for the individual sources affected. For many statistical purposes, however, a satisfactory correction is to increase the flux density of all sources with 0.16≤S415