A poet on trees
From ‘Binsey Poplars’, by Gerard Manley Hopkins
My aspens dear, whose airy cages quelled,
Quelled or quenched in leaves the leaping sun,
All felled, felled, are all felled;
Of a fresh and following folded rank
Not spared, not one
That dandled a sandalled
Shadow that swam or sank
On meadow and river and wind-wandering weed-winding bank.
An artist on trees
Van Gogh, Mulberry Tree
A physicist on trees:
From Rec. ITU-R P.833-9
