[Tex/LaTex] Two Different \mathcal Fonts in Same Document

Question

I would like to use the script C from eucal as well as the usual \mathcal{B} in the same document. The problem is, when I insert \usepackage{eucal} this changes the \mathcal script. How can I take advantage of both? I found the following table (reprinted below) that seems to present the answer using \mathscr to preserve the old \mathcal, but I was not able to figure out how to properly do so.

I am currently using:

%latex
\documentclass[reqno]{amsart}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{eucal}

Here are close-up pictures of the C and B that I would like to use:

Answer 1

\documentclass[reqno]{amsart}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage[mathscr]{eucal}

\begin{document}

$\mathcal{C}\mathscr{C}$

\end{document}