Captain F. Brinkley, Japan: Its History, Arts, and Literature… (1901)
“ If a house is said to have so many feet of frontage and so many feet of depth, little idea of its accommodation is conveyed to ordinary minds, and even the dimensions of a room, when stated in feet, are difficult to picture to the imagination. But when a Japanese hears that a house has fifty tsubo, for example, of superficies, he knows that one hundred mats can be spread there, and as he is quite familiar with the space enclosed in a room of six mats, or eight mats, or ten mats and so on, he obtains at once a clear conception of the number of rooms that such a house may contain and their size. ”
