  In this note we relate some selection principles to metrisability and
separability of a manifold. In particular we show that $\sf{S}_{fin}(\mathcal
K,\mathcal O)$, $\sf{S}_{fin}(\Omega,\Omega)$ and
$\sf{S}_{fin}(\Lambda,\Lambda)$ are each equivalent to metrisability for a
manifold, while $\sf{S}_1(\mathcal D,\mathcal D)$ is equivalent to separability
for a manifold.
