(解説文要約)
描かれている石炭層の断面のように、上部が張り出している目をカブリ目といい、
剥ぎ落としやすく採炭には好都合でした。
層の表面は塗装したようにきれいだったようです。
カブリ目の逆で、足元がせり出している層をシリサシ目と呼んでいました。
The seam illustrated in this picture, where the top layer is slanted downward toward the miners, was called "Kaburi-me".
It was ideal to dig, for it was easy to scrape off.
The surface of the seam was as smooth as if it were covered with paint.
The opposite layered seam, in which the bottom layer is sloping towards the miners, was known as "Shirisashi -me".