[texhax] Latex Questions

[leonk at umich.edu]

Hi, sorry for bothering you.
I am trying to finish my Dissertation and get some problems from Latex.
1) I have appendix with pictures which include the math mode like:

\begin{figure}[h!]
        \centerline{ \epsfig{figure=fuselflapgamsig.eps,
        height =  4 in}}
        \caption{solid -- fuselage-flap, dotted -- elliptic
        distribution.  Top -- circulation distribution
        $\Gamma(x)$.  Bottom -- vortex sheet strength distribution
        $ \sigma = \partial \Gamma / \partial s$. }
   \label{fuselflapgamsig}
\end{figure}

then Latex gives me following error message

LaTeX Error: \mathrm allowed only in math mode

If I remove math mode, then it works, but it is really not convenient.  Why 
shouldn't appendix allow math mode in figures?

2) My bibliography list starts with empty [1] reference and then with [2] 
it starts my references.  I am not quite sure why it happens...

3) Is there some way to make it put all the figures of one section before 
another one starts?  I have quite a few figures in certain sections and 
they run all the way into next section.  Which is a mess.

Thank you so much !
leon