The clouds are marching slow.

No mortal foot has trodden
The summits of that range,
Nor walked those mystic valleys
Whose colours ever change;
Yet we possess their beauty,
And visit them in dreams,
While ruddy gold of sunset
From cliff and canyon gleams.

In days of cloudless weather
They melt into the light;
When fog and mist surround us
They're hidden from our sight;
But when returns a season
Clear shining after rain,
While the northwest wind is blowing,
We see the hills again.

The old Dutch painters loved them,
Their pictures show them fair,--
Old Hobbema and Ruysdael,
Van Goyen and Vermeer.
Above the level landscape,
Rich polders, long-armed mills,
Canals and ancient cities,--
Float Holland's heavenly hills.

The Hague, November, 1916.