\begin{table}%T4
\caption{List of the most prominent $n=3$ to $n=2$ transitions.  The columns indicate:
(1) the observed wavelength; (2) transition; (3) the line ratio of 
observation using the high-energy grating on Chandra (Desai et~al. \cite{Desai05}); (4,~5) 
the $n=4$ $R$-matrix results for $\log T = 6.6$ and 6.8 respectively; (6) ratio 
of poulation of upper level due to radiative cascade to the population due to 
direct excitation for the $n=4$ $R$-matrix calculation; (7--9) the same as Cols.~(4--6) but for the $n=3$ $R$-matrix calculation; (10, 11) APEC (version 1.10) 
intensities for $\log T=6.6,6.8$; (12) Desai et~al. (\cite{Desai05}) using an emission 
measure distribution peaked at $\log T=6.8$; (13) intensity ratios calculated 
using the distorted wave collision strengths of Sampson et~al. (\cite{Sampson91}). Note: the 
16.076~\AA\ feature was measured by both a high-energy grating (HEG) and a 
medium-energy grating (MEG) which gave different results; the value in 
parentheses is from the MEG.}
\label{tab4}
%\centering
\par
\begin{tabular}{@{}rlccccccc@{}}
\hline\hline\\[-3mm]
 $\lambda$ (\AA) & Trans.  & Iobs & $I$($n=4$) & $C$($n=4$) & $I$($n=3$) & $C$($n=3$) & $I$(APEC (Desai)) & I(DW $n=3$) \\ 
\hline
 14.208 & 56--1 (3d--2p) &            & 0.64--0.64 & 0.01 & 0.65--0.65 & $<$0.01 & 0.65--0.65 (0.65)  & 0.65--0.65  \\
 14.208 & 55--1 (3d--2p) & 1.0        & 0.36--0.36 & 0.01 & 0.35--0.35 & $<$0.01 & 0.35--0.35 (0.35)  & 0.35--0.35  \\[-2mm]
        &              &            &           &      &           &         &                   &            \\
 14.261 & 53--1 (3d--2p) &            & 0.15--0.15 & 0.02 & 0.14--0.14 & $<$0.01 & 0.13--0.13 (0.13)  & 0.12--0.12  \\
 14.261 & 52--1 (3d--2p) & 0.30       & 0.06--0.06 & 0.12 & 0.05--0.05 & 0.07    & 0.06--0.06 (0.08)  & 0.06--0.05  \\[-2mm]
        &              &            &           &      &           &         &                   &            \\
 14.376 & 49--1 (3d--2p) & 0.39       & 0.27--0.26 & 0.04 & 0.25--0.24 & 0.02    & 0.26--0.25 (0.26)  & 0.24--0.23  \\
 14.539 & 41--1 (3d--2p) & 0.28       & 0.21--0.20 & 0.12 & 0.18--0.17 & 0.07    & 0.19--0.19 (0.19)  & 0.18--0.18  \\
 15.628 & 9--1 (3s--2p)  & 0.31       & 0.44--0.34 & 3.2  & 0.32--0.24 & 2.5     & 0.26--0.25 (0.27)  & 0.17--0.16  \\
 15.870 & 7--1 (3s--2p)  & 0.21       & 0.31--0.23 & 2.9  & 0.22--0.16 & 2.4     & 0.16--0.15 (0.17)  & 0.11--0.10  \\
 15.870 & 10--2 (3s--2p) & 0.24 (bl)  & 0.18--0.13 & 2.9  & 0.12--0.08 & 2.2     &  0.08--0.08 (0.09) & 0.05--0.04  \\
 16.008 & 5--1 (3s--2p)  & 0.58 (bl)  & 0.50--0.38 & 3.6  & 0.36--0.27 & 2.8     & 0.30--0.28 (0.71?) & 0.20--0.17  \\
 16.076 & 4--1 (3s--2p)  & 0.71(0.59) & 0.83--0.60 & 6.5  & 0.60--0.42 & 5.0     & 0.40--0.34 (0.39)  & 0.32--0.25  \\
\hline
\end{tabular}
\end{table}