"Come in Number 51, Your Time Is Up" is a re-recording of "Careful with That Axe, Eugene," originally released as a b-side in December 1968.
"Come in Number 51, Your Time Is Up" je znovu nahraná verzia skladby "Careful with That Axe, Eugene", ktorá pôvodne vyšla ako "B" strana ich singlu z roku 1968.