  Distribution of the conductance P(g) at the critical point of the
metal-insulator transition is presented for three and four dimensional
orthogonal systems. The form of the distribution is discussed. Dimension
dependence of P(g) is proven. The limiting cases $g\to\infty$ and $g\to 0$ are
discussed in detail and relation $P(g)\to 0$ in the limit $g\to 0$ is proven.
