\begin{table} %t4a
\caption{\label{table4a}In Cols.~1 and~2 the identification numbers of
M92C stars Nc and the corresponding Sandage \& Walker numbers (1966)
Ns. In Cols.~3 and~4 the $V$c and $V$s~magnitudes and in Cols.~5 and~6 the
 ($B-V$)~color indices. The color-index ($B-V$) in Col.~5 is determined
by transformations of linear combinations of Vilnius color-indices (see
text).}
\small%\centering
\par
\begin{tabular}{rcrcrr}
 \hline \hline 
 Nc   &  Ns    &  Vc   & Vs  &   ($B-V$)c   &  ($B-V$)s    \\ 
    \hline 
  57&   VI-74& 14.24& 14.25& 0.55&  0.56  \\
  60&   II-39& 14.34& 14.35& 0.83&  0.70  \\
  74&   II-24& 14.55& 14.54& 0.80&  0.78  \\   
  96&   XI-13& 14.81& 14.81& 0.51&  0.51  \\
 106&   II-66& 15.04& 15.02& 0.12&  0.09  \\
 108&   XII-9& 15.10& 15.12& 0.17&  0.15  \\
 111&   VI-55& 15.16& 15.25& 0.13& --0.04  \\ 
 115&    X-22& 15.18& 15.13& 0.16&  0.20  \\
 116&   VI-67& 15.19& 15.14& 0.21&  0.23  \\
 124&   IV-27& 15.23& 15.20& 0.12&  0.18  \\
 132&  XII-26& 15.28& 15.27& 0.13&  0.10  \\
 136&  XII-10& 15.29& 15.22& 0.09&  0.15  \\
 147& VIII-19& 15.37& 15.36& 0.09&  0.11  \\
 154&  VII-36& 15.42& 15.38& 0.14&  0.09  \\
 158&    X-23& 15.44& 15.40& 0.12&  0.05  \\
 194&  VII-46& 15.84& 15.81& 0.13& --0.03  \\
 200&   XI-23& 15.90& 15.82& 0.21& --0.03  \\
 202&   XI-11& 15.97& 15.90& 0.24&  0.02  \\
 205&  XII-24& 16.01& 15.94& 0.10& --0.07  \\
 218& VIII-18& 16.22& 16.11& 0.09&  0.01  \\ 
 219&  III-27& 16.23& 16.15& 0.19& --0.12  \\ 
 \hline 
\end{tabular}
\end{table}