Statistics for occurrence #1 of “Professor Tyndall” in chapter 3, page 22 of Thomas Wentworth Higginson, The new world and the new book:

...on the part of Americans is certainly very apparent to every one of us who visits England; and not infrequently makes itself perceptible, even without a surgical operation, to our English visitors. Professor Tyndall is reported to have said—and if he did not say it,
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