Papers on "The Just-Perceptible Difference"

Contains:

First proof and MS draft of Francis Galton's "The Just-Perceptible Difference";

MSS of "Measure of the Imagination" and "Optical Continuity", being the second and third parts of the lecture on "The Just-Perceptible Difference", but also published as independent papers in Nature;

MSS of "Signals", "Likenesses" and partial draft of "Story of the Teeth";

Diagrams, photographs and models of figures used to illustrate Galton's lecture;

References from books on the senses, and copy of Photographic Work;

Letter from Galton on erroneous figures in telegrams.

1893

13 items

A digitised copy is held by the Wellcome Library as part of Codebreakers: Makers of Modern Genetics.

The papers are available at UCL Special Collections and Archives subject to the usual conditions of access to Archives and Manuscripts material, after the completion of a Reader's Undertaking.

The original material is held at UCL Special Collections. This catalogue is held by the Wellcome Library as part of Codebreakers: Makers of Modern Genetics.