  The Hall ratio of a graph $G$ is the maximum value of $v(H) / \alpha(H)$
taken over all non-null subgraphs $H$ of $G$. For any graph, the Hall ratio is
a lower-bound on its fractional chromatic number. In this note, we present
various constructions of graphs whose fractional chromatic number grows much
faster than their Hall ratio. This refutes a conjecture of Harris.
