\begin{table}%T4
\par
\caption{\label{tabella4}Radii derived with the current CORS method compared with 
previous determinations (see text).}
%\centerline
{
\begin{tabular}{c c c c c c c c c }
\hline
\hline
Cepheid &Binary & Period & $R_{{\rm without} \Delta B}$ & $R_{\Delta B}$ &~$R_{\rm AFR}$ &~$R_{\rm LS}/R_{\rm GFG}$ &~$R_{\rm RBMR.}$ &~$R_{\rm BM}$\\
& &days &$\frac{R}{R_{\odot}}$ &~$\frac{R}{R_{\odot}}$ &~$\frac{R}{R_{\odot}}$ &$\frac{R}{R_{\odot}}$ &~$\frac{R}{R_{\odot}}$ &~$\frac{R}{R_{\odot}}$\\
\hline
FF Aql$^{*}$ & O & 4.470840 &  49.8 &  54.1 & 52.0 & -- & -- & --\\
FM Aql       & -- & 6.114334 & 56.5 & 59.3 & 59.3 & -- & 60.6 & 51.61\\
FN Aql       &  -- & 9.481614 & 83.5 & 86.5 & -- & -- & -- & --\\
$\eta$ Aql   & B & 7.176779 & 48.2 & 52.6 & 67.5 & --& 56.7 & 52.76\\
TT Aql       & -- & 13.75551 & 84.3 & -- & 76.1 & -- & 95.3 & 94.31\\
U Aql        &  O & 7.024100 & 45.4 & 47.0 & 48.9 & --& 61.3 & 52.45\\
V496 Aql     & B & 6.807164 & 47.7 & 61.2 & 38.1 & -- & 36.4 & 43.69 \\
V600 Aql     & -- & 7.238748 & 55.4 &8 0.1 & 56.3 & -- & -- & --\\
RX Aur       & B: & 11.623537& 83.7 & 81.0 & -- & -- & -- & 61.17\\
RT Aur       & -- & 3.728561 & 27.9 & 30.6 & 36.2& -- & 42.2 & 35.74\\  
$\delta$ Cep & V & 5.366316 & 41.0 & 47.2 & 46.2 & -- & 52.8 & 39.84\\
DT Cyg$^{*}$ & -- & 2.499086 &  46.4 & 38.7 & 32.3 & -- & 42.9 & --\\
SU Cyg       & O & 3.845733 &  35.4 & 40.8 & 48.9 & --& 61.3 & 52.45\\
X Cyg        & -- & 16.386130&104.1 & -- & 69.3 & -- & 96.2 &114.29\\ 
VZ Cyg       & O & 4.864504 & 45.3 & 53.1 & 35.8 & --& 47.3 & 35.57\\
BG Cru$^{*}$ & -- & 3.342503 & 28.9 & 32.7 & -- & -- & -- & --\\ 
$\zeta$ Gem  & V & 10.150780 & 64.4 & 75.0 & 55.1 & -- & 86.2 & 62.55\\
W Gem        & -- & 7.913960 & 96.9 & 86.4 & 48.5 & -- & 60.7 & 48.69\\
BG Lac       & b & 5.331938 & 47.0 & 48.9 & -- & -- & 35.8 & 43.49\\
X Lac        &  b & 5.444990 & 41.3 & 46.9 & 36.7 & -- & 71.2 & 61.97\\
Z Lac        & O & 10.88554 & 67.2 & 69.4 & 83.1 & -- & 86.8 & 66.40 \\ 
BF Oph       &  b & 4.067695 &  39.9 & 44.8 & -- & 36.11$^a$/ 35.8$^b$ &32.4 & 33.78\\
Y Oph        &  b &17.126780 & 96.3 & 93.4 & -- & 93.22$^a$ & 112.2 &--\\
AW Per       & O & 6.463589 & 29.7 & 37.5 & 34.7 & -- & 54.8 & 45.40\\
V440 Per$^{*}$ & B: &7.572712 & 62.9 & 76.8 & -- & -- & -- & --\\
CM Sct       & -- & 3.916977 & 38.4 & 38.6 &29.6 & -- & -- & --\\
EV Sct       & B: & 3.090998 & 30.9 & 42.0 & --& 47.62$^a$/ 32.5$^b~$ & 36.6 & --\\
SS Sct       & -- & 3.671280 &  39.6 & 44.2 & 30.4 & -- & -- & 27.71\\ 
RU Sct       & -- & 19.70062 &102.9 &-- & -- & 120.45$^a$  & -- & --\\
Y Sct        & b &10.341650 & 60.9 & -- & -- & -- & 71.5 & 80.45\\
AP Sgr       &  B: &5.0574269 & 60.4& 62.3 & 36.6 & -- & 50.0 & -- \\
S Sge        & O & 8.382044 & 75.1 & 79.1 & 64.6 & -- & -- & --\\
BB Sgr       & -- & 6.637115 & 47.6 & 61.3 & -- & 37.39$^a$ /44.4$^b$ & 53.5 & 40.42\\
U Sgr        &  -- & 6.745363 & 76.6 & 82.5 & -- & 52.30$^a$/ 48.8$^b$ & -- & 57.61\\
V350 Sgr     & O & 5.154557 & 32.1 & 32.7 & 40.2 & -- & 46.0 & 49.55\\
X Sgr        & -- & 7.012630 & 52.5 & 59.8 & 68.5 & -- & 58.6 & 47.76\\
Y Sgr        & B & 5.773400 & 47.4 & 56.2 & -- & -- & 61.4 & 47.95\\
YZ Sgr       &  -- & 9.553606 & 93.6 & 95.8 & -- & -- & 136.0 & --\\
W Sgr        &  O & 7.595080 & 58.6 & 62.6 & 62.5 & -- & 58.6 & 60.77\\
WZ Sgr       & B &21.849708 &120.5 & --    & -- & 121.43$^a$ /122.2$^b$ & -- & 151.20\\
SV Vul       & B &44.999660 &213.0 & -- & 135.6 & 241.62$^a$/ 250.7$^b$ & -- &189.5\\
T Vul        & b &4.435532 & 31.8 & 37.1 & 42.3 & -- & 48.8 & 36.54\\
U Vul        & O &7.990736 & 75.0 & 84.4 & 57.9 & -- & 61.1 & 54.34\\
\hline
\end{tabular}}
\smallskip
An asterisk at top-right of Cepheid name means that it pulsates as a 
First Overtone. \\
In the second column: B - spectroscopic binary, B: - spectroscopic binary but 
confirmation needed; b - Photometric companion, 
physical relation should be investigated; O - spectroscopic binary 
with known orbit; V visual binary (see Szabados \cite{Szabados2003} for details).\\
Radius sources:~$R_{\rm AFR}$ \mbox{Arellano Ferro} \& Rosenzweing (\cite{Arellano2000});~$R_{\rm LS}$ Laney \& Stobie (\cite{Laney1995}) /~$R_{\rm GFG}$ Gieren et~al. (\cite{Gieren1998}): in the table~$^a$ refer to~$R_{\rm LS}$ and ~$^b$ to~$R_{\rm GFG}$;~$R_{\rm RBMR}$ Ripepi et~al. (\cite{Ripepi1997});~$R_{\rm BM}$ Barnes \& Moffet (\cite{Barnes1987}).
\end{table}