ABSTRACT
This chapter provides evidence that supports these conclusions:
The abstract of Francis Galton’s December 1888 paper that was published in Nature on January 3, 1889 may not have been written by him, although the weightier evidence supports his authorship.
It is unclear why the word “Co-relation” was changed to “Correlation” in that abstract, nor is it clear who made the change; subsequently, the word correlation was used instead of co-relation in all publications by virtually all authors, including Galton himself.
A paper that he published in four different versions in different journals at different times with different titles (after it was given orally to the Royal Society on January 22, 1889) was designed to explain the difference in meaning that he gave to the words regression and correlation.
A paper that he wrote in late 1889 but published in 1890, titled “Kinship and Correlation,” was designed to explain the difference in meaning that he gave to the words relation and correlation.
Galton was bewilderingly inconsistent in his use of the word correlation after 1889.
