NGC  210   This galaxy is barely detected.
NGC  224   Total flux density is from the data collected by Haynes et al. (1975, A 
NGC  224    compendium of Radio Measurements of Bright Galaxies, CSIRO, Division of
NGC  224    Radiophysics.). The flux density given for the central source refers to
NGC  224    a 4.5'x3.0' complex, there is a 6 mJy core source (van der Kruit, 
NGC  224    1972ApL....11..173V). The radio size is estimated from the 11-cm 
NGC  224    measurements by Berkhuijsen (1977A&A....57....9B).
IC  1613   There is a 60mJy source 7.3' from the field center.
NGC  253   The visibility curve shows the presence of a central source of size 
NGC  253    ~18" and S=2.4Jy and a disk component of size 2.5' (PA=98.1) and 
NGC  253    S=3.2Jy. Becklin et al. (1973ApJ...181L..27B): at 2695MHz, 2.1Jy in 
NGC  253    central region, size ~10", 1.6Jy in disk component, size ~6'.
NGC  598   Total flux density is from Lequeux (1971A&A....15...30L).
NGC  613   Observed at one position angle. Total flux density agrees with other 
NGC  613    observations at 1415 MHz (cf. Haynes et al., 1975, A compendium of 
NGC  613    Radio Measurements of Bright Galaxies, CSIRO, Division of 
NGC  613    Radiophysics.).
NGC  660   Optical magnitude from Holmberg (1958MeLu2.136....1H). Distance 
NGC  660    (scaled to H=100km/s/Mpc) from Benvenuti et al., (1976A&A....53..141B).
NGC  660    Condon and Dressel (1978ApJ...221..456C) measured 225 and 178mJy for 
NGC  660    compact source at respectively 2.7 and 8.1GHz.
NGC  672   There is a 45mJy source 3.6' from the field center.
NGC  908   Source A is 3.3' from the field center.
NGC 1052   Visibility curve: size~15, Stot= 560mJy. Cohen et al. 
NGC 1052    (1971ApJ...170..207C): core source <0.001", Heeschen 
NGC 1052    (1968ApJ...151L.135H, 1970ApL.....6...49H): extended component size 
NGC 1052    ~21'. Central source is variable (Heeschen and Conklin, 
NGC 1052    1975ApJ...196..347H). Condon and Dressel (1978ApJ...221..456C): 
NGC 1052    758 and 1467mJy at 2.7 and 8.1GHz.
NGC 1055   Crane (1977, Thesis, MIT): 30mJy at 2.7GHz, size 52".
NGC 1068   Visibility curve: size ~15' and Stot=5.1Jy. De Bruyn and Willis 
NGC 1068    (1974A&A....33..351D), at GHz: Stot=1.75Jy of which 40% is in central
NGC 1068    source. Crane (1977, Thesis, MIT): 934mJy at 2.7GHz, size <1".
NGC 1073   There is a 65mJy source 1.5' south of the field centre. Condon and 
NGC 1073    Dressel (1978ApJ...221..456C) quote a position of RA=2h41m04.9s,
NGC 1073    DE=1{deg}08'26.8" (1950) for this source.
NGC 1275   Visibility curve (PA=91.5): 12.6Jy in 5" structure and 2.2Jy in 40" 
NGC 1275    structure. Large-scale structure uncertain. Miley and Perola 
NGC 1275    (1976A&A....45..223M): compact source, <0.05" with 7Jy, 30" structure 
NGC 1275    with Jy and 5' structure with 2Jy. Ekers et al. (1976Natur.262..269E): 
NGC 1275    compact source is variable.
NGC 1302   Source A is at 2.3', B at 6.4 and C at 4.9' from the field center. A is 
NGC 1302    probably within the optical picture, 2.1' south of the optical center.
NGC 1421   Of the total flux density 50mJy can lie in the central source.
NGC 1637   The transform given in figure 4a is a combination of the observation at 
NGC 1637    PA=88.5 and PA=90.2. They were combined because of the poor signal to 
NGC 1637    noise in the individual strip distributions. Source A is an artifact 
NGC 1637    due to this combination. In fact it is a point source of 40mJy.
NGC 1964   Source A and B are certainly background sources.
NGC 2146   Separation of central source and disk component is uncertain.
NGC 2207   Observed at one position angle. Lequeux (1971A&A....15...30L) 
NGC 2207    measured 400+/-80mJy at 1415MHz.
NGC 2217   Source A is probably a superposition of two or more sources, it cannot 
NGC 2217    be seen in the other transform.
NGC 2314   Ekers (priv. cornm.) measured <=25mJy at 1.4GHz and noted confusion by 
NGC 2314    3C 173.1. The strong source was subtracted.
NGC 2347   Probably extended, size 1.3'.
NGC 2377   3C 178. Visibility curve: size ~20", flux density of main 
NGC 2377    component ~1.2Jy.
NGC 2523   Three spacings were used; all sources with peak flux density >15mJy were
NGC 2523    subtracted. Probably extended, size 1.6'.
NGC 2639   For the displayed transform three spacings were used. Source A is 3.1' 
NGC 2639    from the center of the field. Condon and Dressel (1978ApJ...221..456C):
NGC 2639    central source 76 and 50mJy at respectively 2.7 and 8.1GHz.
NGC 2655   Crane (1977, Thesis, MIT): 65 and 27mJy at respectively 2.7 and 8.1GHz, 
NGC 2655    size <3".
NGC 2903   Crane (1977, Thesis, MIT): 53mJy at 2.7MHz, size 7".
NGC 2942   Observed at one position angle. Dressel and Condon (1978ApJS...36...53D)
NGC 2942    did not detect the galaxy. Probably a background source.
NGC 3021   Observed at one position angle. Dressel and Condon (1978ApJS...36...53D)
NGC 3021    measured 18+/-3mJy at 2340MHz. Source A is probably a background source
NGC 3031   De Bruyn et al. (1976A&A....46..243D): central source is variable 
NGC 3031    and has flat spectrum. Kellermann et al. (1976ApJ...210L.121K) 
NGC 3031    central source <0.004".
NGC 3034   Visibility curve and transform: core source with S=55mJy, size <4", 
NGC 3034    central source of size 40" and S=7000mJy and disk component with
NGC 3034    S=500mJy and size 3.9'. For the visibility plot and the transform three
NGC 3034    spacings were used. Hargrave (1974MNRAS.168..491H): at 5GHz there
NGC 3034    is 3.1Jy from a 50"x15" source and 180mJy in the core source, <0.6". 
NGC 3034    Geldzahler et al. (1977ApJ...215L...5G): size core source 0.0015".
NGC 3065   There is a 30mJy source 51" north and 45" east of the field center.
NGC 3169   The peak in the strip distribution is 38" off center.
NGC 3183   Optical magnitude is BT magnitude from RC2. Distance uncertain. Radio 
NGC 3183    size not corrected for projection effects.
NGC 3227   Condon and Dressel (1978ApJ...221..456C) measured 51 and 21mJy at 
NGC 3227    respectively 2.7 and 8.0GHz.
NGC 3338   Not observed. Upper limit for total flux density is from Pfleiderer 
NGC 3338    (1977A&AS...28..313P), for the central source the value given by 
NGC 3338    Dressel and Condon (1978ApJS...36...53D) is scaled to 1415 MHz with 
NGC 3338    {alpha}=-0.7.
NGC 3344   Source A is 3.40' south and 2.4' east of field center.
NGC 3351   Presence of three strong source males the interpretation of this strip 
NGC 3351    distribution uncertain. The ~50mJy deflection is due to a missing 
NGC 3351    spacing.
NGC 3368   Source A is at 4.3' from the field center.
NGC 3395/6 The structure of the radio emission of this interacting pair is unclear.
NGC 3395/6  Component I is NGC 3396, component 2 is NGC 3395. Source A is more than
NGC 3395/6  5' away from the field center.
NGC 3430   There is a 25 mJy source at 2'6 from the field center. 
NGC 3516   The strong sources were not subtracted. Source A is at 4.4' from the 
NGC 3516    field center.
NGC 3521   Source A and B are components of a double source close to the galaxy. 
NGC 3521    They have been observed by Crane (1977, Thesis, MIT). The nearest
NGC 3521    component is ~1.6' from the optical center of the galaxy.
NGC 3583   ~ources of 30 and 20mJy are at resp. 1.2' and 2.2' from the field 
NGC 3583    center. The quoted 20mJy for the central source is uncertain.
NGC 3626   There is a 25mJy source 27" east. The actual position cannot be 
NGC 3626    calculated (only one PA) Dressel and Condon (1978ApJS...36...53D) 
NGC 3626    measured 12+/-4mJy at 2 340MHz.
NGC 3627   Crane (1977, Thesis, MIT): 13 and 6mJy at respectively 2.7 and 8.1GHz, 
NGC 3627    size <3".  
NGC 3628   See also figure 3. Crane (1977, Thesis, MIT): 157 and 59mJy at 2.7 and 
NGC 3628    8.1GHz, size ~6".
NGC 3640   There is a 20mJy source which is at least 42" from the optical center of
NGC 3640    the galaxy but probably within the optical boundary as defined by D0.
NGC 3672   Radio size measured along optical minor axis. Not corrected for 
NGC 3672    projection effects.
NGC 3718   Observed at one position angle. Burke and Miley (1973A&A....28..379B) 
NGC 3718    detected a 20+/-5mJy source at the position of the galaxy.
NGC 3738   There is a 95mJy source at 1.9' from the field center.
NGC 3780   There is a 20mJy source at 1.0' from the field center.
NGC 3804   Magnitude is from RCBG1. Distance same as N 3780, Nilson 
NGC 3804    (1973, Cat. <VII/26>) noted pair with N 3780.
NGC 3904   There is a 90mJy source 11.3' from the field center.
NGC 3938   Presence of central source uncertain.
NGC 3982   Dynamic range problem complicate the interpretation of the strip 
NGC 3982    distribution. Was also detected in a full synthesis observation of 
NGC 3982    N 3998.
NGC 3995   There is a 60mJy source at 1.7' from field center (0.9' south 1.5' 
NGC 3995    west). This source is identified with N 3994.
NGC 3998   Full synthesis observation with the WSRT revealed the presence of an 
NGC 3998    extend component with a flux density of 28+/-8mJy. The major axis of 
NGC 3998    this component is perpendicular to the optical major axis. N 3990, 
NGC 3998    N 3977 and N 3972 (group members) were not detected; S<3mJy. N 3982 was
NGC 3998    detected, S=47mJy and was slightly resolved. Condon and Dressel 
NGC 3998    (1978ApJ...221..456C) detected N 3998: 109 and 94mJy at respectively 
NGC 3998     2.7 and 8.1GHz.
NGC 4038/9 The observation is centered on N 4038. The structure shown in figure 4a 
NGC 4038/9  is ~1' south of N 4038 and aligned east-west. The total east-west 
NGC 4038/9  extent is 2'.
NGC 4041   Observed only at one position angle.
NGC 4088   Strong background source was not subtracted.
NGC 4096   There is a 13mJy source at 2.2' from the field center.
NGC 4102   A full resolution synthesis map, obtained with the WSRT confirmed the 
NGC 4102    presence of a 100mJy disk component with the major axis parallel to the
NGC 4102    optical major axis. Condon and Dressel (1978ApJ...221..456C) observed 
NGC 4102    central source: 162 and 66mJy at respectively 2.7 and 8.1GHz.
NGC 4125   There is a 20mJy source 1.5' south of the field center.
NGC 4151   Condon and Dressel (1978ApJ...221..456C): 199 and 86mJy at respectively 
NGC 4151    2.7 and 8.1GHz.
NGC 4157   Source A is ~2.4' south and ~1.5' east of the field center.
NGC 4236   There are probably two sources with S=12mJy within the optical image. 
NGC 4236    Certainly not in the center of the galaxy.
NGC 4261   Three spacings were used for the visibility curve and the transform. 
NGC 4261    Flux density of central source uncertain. For large scale structure see
NGC 4261    Kronberg (1972ApJ...176...47K). Core source <=0.001" (Preuss et al., 
NGC 4278    1977A&A....54..297P). Ekers and Ekers (1973A&A....24..247E) 390mJy at 
NGC 4278    5GHz. Condon and Dressel (1978ApJ...221..456C) 393 and 228mJy at 
NGC 4278    respectively 2.7 and 8.1GHz.
NGC 4290   There is a 18mJy source at 1.8' from the field center.
NGC 4346   Observed at one position angle.
NGC 4374   For large scale structure see Jenkins et al. (1977MmRAS..84...61J). 
NGC 4374    Core source <=0.001" (Preuss et al., 1977A&A....54..297P).
NGC 4438   The extended emission to the west of the point source belongs to this 
NGC 4438    peculiar galaxy (Kotanyi, priv. comm.) Crane (1977, Thesis, MIT): 
NGC 4438    54 and 19mJy at respectively 2.7 and 8.1GHz, size ~4".
NGC 4449   Strong source was not subtracted because of an instrumental error which 
NGC 4449    causes also the ~50mJy deflection east of the galaxy.
NGC 4460   Two sources with S=95 and 63mJy at resp. 4.5' and 42' from the field 
NGC 4460    center.
NGC 4472   Ekers and Kotanyi (1978A&A....67...47E) resolved this source.
NGC 4486   For large scale structure see Kotanyi (1979c, in prep.). 
NGC 4486    Core source <=0.001" (Kellermann et al., 1973ApJ...179L.141K).
NGC 4490   Observation is centered on N 4485. Strong source is NGC 4490.
NGC 4527   Crane (1977, Thesis, MIT): 56mJy at 2.7GHz, size =16".
NGC 4536   Crane (1977, Thesis, MIT): 101 and 48mJy at respectively 2.7 and 8.1GHz,
NGC 4536    size =7".
NGC 4552   Condon and Dressel (1978ApJ...221..456C): 99 and 76mJy at respectively 
NGC 4552    2.7 and 8.1GHz.
NGC 4567/8 The strong source to the west of the field center is due to a grating 
NGC 4567/8  response of probably Virgo A. It makes the interpretation of the 
NGC 4567/8  transform uncertain. The companion N 4567 has a central source, S=30mJy
NGC 4567/8  (Kotanyi, priv. comm.).
NGC 4569   Source A is a grating response of a nearby strong source.
NGC 4579   Crane (1977, Thesis, MIT): 36 and 25mJy at respectively 2.7 and 8.1GHz, 
NGC 4579    size <3".
NGC 4594   Condon and Dressel (1978ApJ...221..456C): 100 and 137mJy at respectively
NGC 4594    2.7 and 8.1GHz. De Bruyn et al. (1976A&A....46..243D) 
NGC 4594    variable source.
NGC 4605   Source A is ~2.5' south of the field center.
NGC 4636   Small peak to the east is 1.9' south and 0.5' east.
NGC 4649   The extended source A is the companion N 4647. It has a flux density 
NGC 4649    of 35mJy.
NGC 4656   Flux density and structure are derived from a 50cm map obtained with the
NGC 4656    WSRT (Sancisi, priv. comm.) in combination with the present 21cm 
NGC 4656    observation.
NGC 4666   The position of source A could not be calculated because of the 
NGC 4656    declination of the galaxy.
NGC 4691   Radio size could not be measured.
NGC 4699   There is a 35mJy source 2.1' west of the field center.
NGC 4710   Dressel and Condon (1978ApJS...36...53D): S= 17+/-4mJy at 2340 MHz.
NGC 4754   There is a 35mJy source 4.7' from the field center.
NGC 4902   Source C is at 2.6'+/-1.0' from the field center. Its flux density is 
NGC 4902    included in the total flux density of the galaxy.
NGC 5054   Source B is 1.6' west of the optical center. Assumed to be a background 
NGC 5054    source. Radio size could not be measured.
NGC 5112   A 50mJy source could be present at 4.3' from the field center.
NGC 5248   Source A is noted by Crane (1977, Thesis, MIT) as being double, it is 
NGC 5248    1.9' from the field center. The interpretation of the emission of the 
NGC 5248    galaxy is uncertain.
NGC 5297   Distance uncertain. Radio size uncertain and measured along optical 
NGC 5297    minor axis. Not corrected for projection effects.
NGC 5350   Source A can be between 3.5' and 5' from the field center. 
NGC 5350    Interpretation of the background sources is difficult due to the 
NGC 5350    superposition of sources in one of the transforms.
NGC 5353/4 N 5354 was detected in a full synthesis observation of the region around
NGC 5353/4  N 5353. It is a point source with S=4mJy.
NGC 5363   Condon and Dressel (1978ApJ...221..456C) measured 108 and 74mJy for 
NGC 5363    compact source at respectively 2.7 and 8.1GHz.
NGC 5364   Observed at one position angle. Source at center of the strip 
NGC 5364    distribution is the central source of N 5363. Total flux density is 
NGC 5364    uncertain.
NGC 5394/5 Both galaxies-in this system were detected. The total flux density is 
NGC 5394/5  110mJy. N S394 (source A) seems to be a central source.
NGC 5427   Observed at one position angle. Cameron (1971MNRAS.152..429C) measured 
NGC 5427    220+/-50mJy at 408MHz.
NGC 5430   Observed at one PA Sramek (1975AJ.....80..771S) measured 
NGC 5430    40+/-8mJy at 5000MHz. Radio classification uncertain.
NGC 5457   Total flux density is from de la Beaujardiniere et al. 
NGC 5457    (1968AnAp...31..387D). There is a 14mJy source 1.5' from the optical 
NGC 5557   center. There is a 45mJy source between 3' and 10' from the field center
NGC 5746   Most of the emission seen is at 6.6' from the field center. Central 
NGC 5746    source is uncertain.
NGC 5899   Source A is 2.0' south and 1.2' west and source B 3.1' south and 2.3' 
NGC 5899    west from the field center. Probably a double source.
NGC 5907   Flux densities are obtained from the full synthesis measurements with 
NGC 5907    the WSRT. Sources A and B are components of a double source just south 
NGC 5907    of the galaxy.
NGC 6239   The strip distribution shqwn is a combination of the observations at 
NGC 6239    PA=55.0 and PA=61.3.
NGC 6384   Observed at one position angle.
NGC 6643   Strong double source was not subtracted.
NGC 6946   Crane (1977, Thesis, MIT): 45 and 17mJy at respectively 2.7 and 8.1GHz, 
NGC 6946    size ~4".
NGC 7448   Observed at one PA Dressel and Condon (1978ApJS...36...53D): S=49+/-4mJy
NGC 7448    at 2340MHz.