at the edge

See: extreme, last
References in classic literature ?
"I can see plenty of nice gardens and fields down below us, at the edge of this city.
Well, as I was about to say, I had this little shelter at the edge of my melon-patch.
Jeremy Fisher; he lived in a little damp house amongst the buttercups at the edge of a pond.
It had been built just at the edge of the desert, so that all its length lay upon the gray sand except the after part, which still rested on the strip of grass.
At the edge of the desolate valley, overlooking the golden domes and minarets of Opar, Tarzan halted.
My senses reeled; I felt myself falling, and in clutching at the edge of the door for support pushed it shut with a sharp click!
As the success of her plan approached more closely to fruition she became so wrapped in her efforts that she failed to note the figure of a man standing beneath a huge tree at the edge of the jungle from which he had just emerged.
Often they ceased their labors to squat, resting and gossiping, with much laughter, at the edge of the pit they were digging.
Among the branches of the trees at the edge of the clearing, a score or more monkeys chattered and scolded as the loud snorts of the angry beast sent them scurrying affrightedly to the upper terraces.
Vapor IO is developing the largest nationwide edge colocation and interconnection platform at the edge of the wireless cellular network.
The shrinkage of the paint during cure on an already-exposed edge causes it to flow even further away from the sharp edges, resulting in bare metal at the edge. This is the entry point for corrosion failure.
What are the benefits of processing data at the edge?