Corrigenda

Abstract

Observations at 408 MHz of radio sources from the 4C catalogue. By R. E. B. Munro "I. Declination range ?7° to ?3°." pp.263-91 "II. Declination range ?3° to 0°." pp. 617?30 Owing to an error in the computer program used to produce Table 4 of Part I and Table 1 of Part II, the quoted declination errors are generally too small. A first-order correction may be effected by multiplying the quoted errors by (secz)/(secd), where z is the zenith angle and d the declination. This correction factor leads to a slight overestimation (= 12%) for the stronger sources.