She beholds to the right and the left a quaking bog of abstractions and metaphysical definitions, whereon if a critic so much as set his foot he is sucked down into the bottomless mire.

As it was, we plunged and strove for more than an hour in that place, the dark sky above us, the quaking bog below, the women's weeping in our ears.

Of the difficulties and dangers in reaching those points, through marsh and quaking bog, we will not stop to speak; at length all were in place, and ducks already streamed overhead within half gunshot while we awaited the signal to open.

"To hide in a retreat not far away, which is impossible of access to any one who does not know the road, and it needs wary walking, even when one does know it, for it winds through quaking bog and mire-pits and hidden pools."

His march was not upon solid ground, but over a quaking bog, every undulation and waver of which was answered by a qualm at his heart.