Note 29 — Chapter XXXVII
Reading edition
Sen is not a hundred, but a thousand. According to Klaproth (Annals des Dairi, p. 184), ken does not signify a mat, as Kämpfer translates it (though mats were made of that length), but a space between columns. It was a measure of length divided into six Japanese feet, but equal to seven feet four inches and a half, Rhineland measure.