only 1 use
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- And this cruel outward accuser was there in the shape of a wife—nay, of a young bride, who, instead of observing his abundant pen-scratches and amplitude of paper with the uncritical awe of an elegant-minded canary-bird, seemed to present herself as a spy watching everything with a malign power of inference.Book 2 — Old and Young (76% in)
There are no more uses of "amplitude" in Middlemarch.
Typical Usage (best examples)