1917.... I suppose that a century hence men and women will think of that date as one of the world's black years flinging its shadow forward to the future until gradually new generations escape from its dark spell. To us now, only a few months away from that year, above all to those of us who have seen something of the fighting which crowded every month of it except the last, the colour of 1917 is not black but red, because a river of blood flowed through its changing seasons and there was a great carnage of men.