%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-5-29 on page I-223 in "manyfoot, bigfoot --- Independent footnotes".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{165.0pt}
\setlength\textheight{8.5\baselineskip}
\addtolength\textwidth{-4pt}

%StartShownPreambleCommands
\usepackage[marginal,multiple]{footmisc}
\usepackage[ruled]{manyfoot}      % or bigfoot
\DeclareNewFootnote{B}[fnsymbol]
\DeclareNewFootnote{C}[Alph]
\renewcommand\extrafootnoterule{\vspace*{-3pt}%
     \hrule width 4em height 0.4pt \vspace*{2.6pt}}
\setlength{\skip\footinsC}{5pt minus 1pt}
%StopShownPreambleCommands

\begin{document}
Some text\footnote{A first.}\footnoteB{A second.}
with a footnote. Even more text.\footnoteC{A third.}
Some text\footnoteB{A sample.} with a
footnote.\footnoteC{Another sample.} Some more
text for the example.
\end{document}