In falling Timbers buried — Spade-foot Toad

In falling Timbers buried-1
There breathed a Man-
Outside-the spades-were plying-
The Lungs-within-

Could He-know-they sought Him-5
Could They-know-He breathed-
Horrid Sand Partition-
Neither-could be heard-

Never slacked the Diggers-9
But when Spades had done-
Oh, Reward of Anguish,
It was dying-Then-

Many Things-are fruitless-13
'Tis a Baffling Earth-
But there is no Gratitude
Like the Grace-of Death-
(F.447/J.614)
[2, 3] a Man Outside:: a man was standing outside the falling timbers.
[3] spades:: spade-foot toads.
[3, 4] spades, plying, within:: the toads were under the earth, covered by timbers.
[5] they sought Him:: the toads tried to dig out to the man.
[9] Diggers:: the toads, not the man.
[12] dying:: the toads were blocked by timbers.

This includes tho Hermit Spade-Foot, S. solitarius having the teeth of a frog and the parotid glands of a toad. It is two inches long; lives in small holes, which it excavates in damp earth; feeds on insects; found from Massachusetts to the Carolinas. ─ Illustrated Natural History of the Animal Kingdom (1859)