Form shades like these? Pretender, where thy blush?
In three short hours shall thy presuming hand
Th’ effect of three slow centuries command?
Thou may’st thy various greens and grays contrive;
They are not Lichens, nor like ought alive;-
But yet proceed, and when thy tints are lost,
Fled in the shower, or crumbled by the frost;
When all thy work is done away as clean
As if thou never spread’st thy gray and green;
Then may’st thou see how Nature’s work is done,