V1  The B, V, and R light curves show a few data points out of phase. The mean 
V1   magnitudes and the amplitudes are minimally affected.

V2  Small amplitude modulations in the B- and V-band light curves indicate that 
V2   V2 might be a candidate Blazhko variable. The mean U, I magnitudes and 
V2   their amplitudes are based on Sturch (1977PASP...89..349S), Cacciari 
V2   (1979AJ.....84.1542C), and Liu & Janes (1990ApJ...360..561L) for the U-band
V2   data and on Clementini et al. (1994MNRAS.267...83C) for the I-band data.

V3  The current photometry covers only the phases around maximum (increasing and
V3    decreasing branch). The B-band amplitude is based on data from 
V3    Clement et al. (2001AJ....122.2587C).

V6  The mean U-band magnitude and amplitude are based on data from 
V6   Cacciari (1979AJ.....84.1542C).

V7  The current AV amplitude is smaller than than previous estimates 
V7   (1.06 versus 1.24). The difference might be due to the fact that the 
V7   period of V7 is close to 0.5 days.

V11 Amplitude estimates in all bands are affected by very large Blazhko 
V11  modulation. The mean U-band magnitude and amplitude are based on data 
V11  from Sturch (1977PASP...89..349S).

V12 The mean U-band magnitude and amplitude are based on data from 
V12  Sturch (1977PASP...89..349S).

V14 Very small amplitude modulations only visible in the B-band light curve 
V14  suggest that V14 might be a Blazhko variable. The mean U-band magnitude and
V14  amplitude (AU) are based on data from Sturch (1977PASP...89..349S) and 
V14  Cacciari (1979AJ.....84.1542C).

V15 Amplitude modulations in the B-, V- and R-band light curves indicate that 
V15  V15 is a candidate Blazhko variable. According to Clementini et al. 
V15  (1994MNRAS.267...83C), this is a peculiar variable with a decreasing period
V15  and either a strong Blazhko effect or a pulsation mode switching from FU to
V15  FO. The behavior resembles the RR Lyrae V79 in M3 Goranskij 
V15  (1980ATsir1111....6G). The B- and V-band light curves show a larger 
V15  amplitude modulation than in the R band.

V18 We confirm that this is an FU mode RR Lyrae.

V19 The mean U-band magnitude and amplitude are based on data from 
V19  Sturch (1977PASP...89..349S).

V21 The current B-, V- and R-band amplitudes are smaller than previous 
V21  estimates, probably due to the fact that the pulsation period is close 
V21  to 0.5 days.

V22 Amplitude modulations in the B- and V-band light curves indicate that V22 is
V22  a candidate Blazhko variable.

V24 Amplitude modulations in the B-, V- and R-band light curves indicate that 
V24  V24 is a candidate Blazhko variable.

V27 The mean U-band magnitude and amplitude are based on data from Sturch 
V27  (1977PASP...89..349S) and Cacciari (1979AJ.....84.1542C).

V28 Amplitude modulations in the B-, V- and R-band light curves indicate that 
V28  V28 is a candidate Blazhko variable. The mean U-band magnitude and 
V28  amplitude are based on data from Sturch (1977PASP...89..349S).

V29 Small amplitude modulations in the B- and V-band light curves suggest that 
V29  V29 may be a candidate Blazhko variable. The period, the mean magnitudes, 
V29  the amplitudes and the epoch of maximum include data from Sturch 
V29  (1977PASP...89..349S), Cacciari (1979AJ.....84.1542C) and Clementini et 
V29  al. (1994MNRAS.267...83C).

V30 The mean U-band magnitude and amplitude are based on data from 
V30  Cacciari (1979AJ.....84.1542C).

V31 Amplitude modulations in the B-, V- and R-band light curves indicate that 
V31  V31 is a candidate Blazhko variable. The mean U-band magnitude and 
V31  amplitude are based on data from Sturch (1977PASP...89..349S).

V32 The period, the mean magnitudes, the amplitudes and the epoch of maximum 
V32  include data from Sturch (1977PASP...89..349S), 
V32  Cacciari (1979AJ.....84.1542C), and Liu & Janes (1990ApJ...360..561L).

V33 The period, the mean magnitudes, the amplitudes, and the epoch of maximum 
V33  include data from Sturch (1977PASP...89..349S), Cacciari 
V33  (1979AJ.....84.1542C), and Liu & Janes (1990ApJ...360..561L) for the U, B, 
V33  and V bands and from Liu & Janes (1990ApJ...360..561L) for the R and I 
V33  bands.

V34 Limited number of data points in all bands.

V35 Moderate amplitude modulations in the B-, V-, and R-band light curves 
V35  indicate that V35 is a candidate Blazhko variable. The mean U-band 
V35  magnitude and amplitude are based on data from Sturch (1977PASP...89..349S)
V35  and Cacciari (1979AJ.....84.1542C).

V36 Somewhat noisy light curves.

V38 The B- and the V-band light curves show small amplitude modulations. It 
V38  might be a plausible candidate to have been or to be becoming a Blazhko 
V38  variable.

V39 Amplitude modulations in the B-, V- and R-band light curves indicate that 
V39  V39 is a candidate Blazhko variable.

V42 The period, the mean magnitudes, the amplitudes and the epoch of maximum 
V42  include data from Cacciari (1979AJ.....84.1542C) and Clementini et al. 
V42  (1994MNRAS.267...83C).

V43 The astrometry is from Clement et al. (2001AJ....122.2587C). The photometric
V43  parameters are based on data from Cacciari (1979AJ.....84.1542C).

V49 This is a low-amplitude FO variable with a very short period. The light 
V49  curves are noisy but its color is among the bluest of the entire sample.

V64 Amplitude modulations in the B-, V- and R-band light curves indicate that 
V64  V64 is a candidate Blazhko variable. This is V45 in Kaluzny et al. 
V64  (1997AJ....113.2219K). This is clearly a distant background object 
V64  unrelated to M4.

C1  New cluster FO variable.

C2  New candidate field FU variable, a background object unrelated to M4.