Note 453 — Chapter II · Analogy of Sane to Insane Genius.
Reading edition
See Part II., pp. 126-132. I must rectify a mistake I have made in not assigning sufficient importance to the influence of race in France. In fact, in revising my studies on a large scale, I find that the departments peopled by the Belgio-Germanic race yield the maximum proportion of geniuses as 40 per cent., while the Celtic departments yielded only 13·5 per cent., and the Iberian 20 per cent.