--- a/handouts/ho04.tex	Wed May 10 17:03:21 2017 +0100
+++ b/handouts/ho04.tex	Sun May 21 00:43:02 2017 +0100
@@ -582,6 +582,7 @@
 \end{figure}
 
 \begin{figure}[p]
+\small  
 \lstinputlisting[numbers=left,linebackgroundcolor=
    {\ifodd\value{lstnumber}\color{capri!3}\fi}]{../progs/app61.scala}