Note 334 — Chapter VII · THE ART OF COUNTING.
Reading edition
Compare the Rajmahali tribes adopting Hindi numerals, yet reckoning by twenties. Shaw, l.c. The use of a ‘score’ as an indefinite number in England, and similarly of 20 in France, of 40 in the Hebrew of the Old Testament and the Arabic of the Thousand and One Nights, may be among other traces of vigesimal reckoning.