Two-column pages with memoir class

[Rich Shepard]

On Wed, 14 Jun 2023, Herbert Voss wrote:

> Rich, that is not the default. There must be something set in your
> preamble.

Herbert,

I know it't not the default and don't see why it occurs. Here's the
preamble:
%% LyX 2.3.6.1 created this file.  For more info, see http://www.lyx.org/.
%% Do not edit unless you really know what you are doing.
\documentclass[executivepaper,twocolumn,onecolumn]{memoir}
\usepackage[sc]{mathpazo}
\renewcommand{\sfdefault}{uop}
\renewcommand{\ttdefault}{lmtt}
\renewcommand{\familydefault}{\rmdefault}
\usepackage[T1]{fontenc}
\usepackage{geometry}
\geometry{verbose,executivepaper,tmargin=0.9in,bmargin=0.9in,lmargin=0.75in,rmargin=0.75in}
\pagestyle{Ruled}
\setcounter{secnumdepth}{3}
\setcounter{tocdepth}{3}
\usepackage{textcomp}

\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Textclass specific LaTeX commands.
\usepackage[natbibapa]{apacite}

\@ifundefined{date}{}{\date{}}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
%%\date{}
\usepackage{mathpazo,amssymb}
\usepackage{graphicx,relsize}
%\usepackage{scrlayer-scrpage}
%\pagestyle{scrheadings}
\makeatletter
\@addtoreset{figure}{subsection}% Reset figure numbering at every part
\makeatother
\chapterstyle{demo2}

\makeatother

\begin{document}
\frontmatter
\title{Quantifying Freshwater Ambient Conditions\protect \\
Complying with the Clean Water Act}
\author{Richard B. Shepard}

\maketitle
\clearpage

\tableofcontents{}

In the LyX Documnent -> Settings -> Document Class dialog box I added a
custom option of 'onecolumn' and that kludge works.

Regards,

Rich