  We perform a Monte Carlo calculation of the second moment of the polarised
valence quark distributions in the nucleon, using quenched Wilson fermions. The
special feature of this moment is that it is directly accessible
experimentally. At a scale of $\mu \approx 2$GeV we find $\Delta^{(1)}u =
0.198(8)$, $\Delta^{(1)}d = -0.0477(33)$. We compare these numbers with recent
experimental results of the SMC collaboration.
