Zerah Colburn, a mental calculator, as a child. Stipple engraving by H. Meyer, 1813, after T.H. Hull.
Wellcome Collection

Zerah Colburn, a mental calculator, as a child. Stipple engraving by H. Meyer, 1813, after T.H. Hull.

Thomas H. Hull · 1813

CC0 — Public Domain
Wellcome Collection

Lettering: Zerah Colburn, a child just eight years of age, endowed by nature with the remarkable faculty of solving a great variety of arithmetical questions by the mere operation of his mind. From a drawing by T. Hull esqr. ; Engraved by Henry Meyer, Grt. Russell Street, Bloomsbury.

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