\documentclass[12pt]{article}
\usepackage{vmargin}

\setpapersize{USletter}
%% \setmarginsrb{left}{top}{right}{bottom}{headhgt}{headsep}{foothgt}{footskip}
%% \setmarginsrb{1.5in}{1in}{1in}{1in}{12pt}{0.5in}{0pt}{0.5in}
\setmarginsrb{0.5in}{0.50in}{0.50in}{0.50in}{0pt}{0in}{0pt}{0in}
%%
\setlength{\parindent}{0mm}

\pagestyle{empty}

\begin{document}
\begin{center}
{\LARGE McCombe Lab Helium Recovery Efficiency}\\[5mm]
\end{center}

\begin{minipage}[t]{3in}
\Large
\vspace*{5mm}
Whenever you are running an experiment, record the reading of the helium gas flow meter
{\bf every day}. Also record the amount of liquid helium that enters and leaves the
lab. Continue recording until all helium has evaporated from the magnet.
\end{minipage}
\hfill
\begin{minipage}[t]{3.98in}
{\Large\bf Example:}\\
\begin{tabular}{|c|c|}\hline %\vspace{-0.1in}
{\large Date} \rule[-2mm]{0mm}{8mm}& {\large Meter Reading (ft$^3$) / liq. He (l)} \\ \hline
%%
5/10 & --- out / 58\,l in \\ \hline
5/10 & 3258.3 \\ \hline
5/11 & 3441.7 \\ \hline
5/12 & 5\,l out / 53\,l in \\ \hline
5/12 & 3567.1 \\ \hline
5/13 & 3612.0 \\ \hline
5/14 & 3704.8 \\ \hline
5/14 & 1\,l out / --- in \\ \hline
5/15 & 3741.4 \\ \hline
5/16 & 3741.4 \\ \hline
5/17 & end of experiment \\ \hline
%%
\end{tabular}
\end{minipage}

\vspace*{5mm}
\rule{\textwidth}{1mm}
\vspace*{5mm}

\begin{minipage}{3.7in}
\begin{tabular}{|p{0.5in}|p{2.7in}|}\hline %\vspace{-0.1in}
{\large Date} \rule[-2mm]{0mm}{8mm}& {\large Meter Reading (ft$^3$) / liq. He (l)} \\ \hline
%%
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
%%
\end{tabular}
\end{minipage}
\hfill
\begin{minipage}{3.7in}
{\large\bf continued...}\\[3mm]
\begin{tabular}{|p{0.5in}|p{2.7in}|}\hline %\vspace{-0.1in}
{\large Date} \rule[-2mm]{0mm}{8mm}& {\large Meter Reading (ft$^3$) / liq. He (l)} \\ \hline
%%
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
& \\ \hline
%%
\end{tabular}
\end{minipage}

\vspace*{3mm}
\hfill {\small Get a new form at http://mccombe.physics.buffalo.edu/lab\_forms/}

\end{document}