\begin{Schunk}
\begin{Sinput}
 coef(mod1sum)
\end{Sinput}
\begin{Soutput}
                Estimate   Std. Error   t value     Pr(>|t|)
(Intercept) 11.688138523 0.1502978171  77.76652 2.556377e-84
elevation   -0.003237686 0.0002015983 -16.06009 3.638765e-28
\end{Soutput}
\end{Schunk}
