首页 / 官方藏书 / The Natural History of Pliny, Volume 6 (of 6) / CHAP. 47. (13.)—VARIOUS KINDS OF EARTH, THE PUTEOLAN DUST, AND OTHER EARTHS OF WHICH CEMENTS LIKE STONE ARE MADE.
首页 / 官方藏书 / The Natural History of Pliny, Volume 6 (of 6) / CHAP. 47. (13.)—VARIOUS KINDS OF EARTH, THE PUTEOLAN DUST, AND OTHER EARTHS OF WHICH CEMENTS LIKE STONE ARE MADE.