FORBES, R.J. Studies in ancient technology. 1955-64. 9 vols. All prof. ill. Ocl. w. dust-j. -- Id. Short history of the art of distillation. From the beginnings up to the death of Cellier Blumenthal. 1948. Ocl. w. dust-j. -- Id. Bitumen and Petroleum in Antiquity. 1936. Ocl. -- (11).